Quote from Archieisteallamarr >>

What breath weapon do you get with this? [...] i am planning on playing a [tiefling] shadow sorcerer/assassin with a demonic /draconic heritage [...] then i use my breath weapon i.e. cloudkill and there you have it [they're] stuck in the web and can't leave or attack and the breath weapon attack is doing its damage every round

Draconic Sorcerers don't get a breath weapon as a subclass feature.  If you want a breath weapon, here are some options:

• The Dragonborn race gets a breath weapon that recharges on a short or long rest, so you could play a Green Dragonborn instead of a Tiefling, or work with your DM to homebrew a balanced hybrid Tiefling/Dragonborn.
  
  
  • Notice that Dragonborn breath weapons only do one-time damage.  Cloudkill is far more powerful than a one-time poison damage spell, because it sticks around and also makes the area heavily obscured, which is why it's a 5th-level spell and requires concentration.  So it would be very difficult to balance a homebrewed Cloudkill breath weapon.
• Sorcerers have access to the 2nd-level spell Dragon's Breath from Xanathar's Guide to Everything. 
  And for flavor, you can say that as you cast any spell that deals poison damage, the poison is emitted from your mouth; it doesn't affect the mechanics much. 
  
  
• You could also work with your DM to adapt other cone-damage spells like Burning Hands, Psionic Blast, Cone of Cold, or Investiture of Ice to do poison damage so it fits your dragon type.  You and your DM should keep in mind how that affects the power of those spells, given the resistances and immunities of monsters you're likely to encounter.

What breath weapon do you get with this?don't you get the breath weapon of the draconic that your relationship is with say green dragon would be poisonous cloud ie cloud kill or blue dragon would be lighting and so on for each dragon type i am planning on playing a tefling shadow sorcerer/assassin with a demonic /draconic heritage and picking the green dragon as my draconic heritage so wouldn't i get the green dragons breath weapon i thought once a day so say i am in a dungion and i have 6 d6 monsters so i cast web and web them to the floor then i use my breath weapon i.e. cloudkill and there you have it there stuck in the web and can't leave or attack and the breath weapon attack is doing its damage every round and it ends up killing them with poison? Would this not work?

Quote from tyranttoxicroak >>

Twin? That metamagic that works with 6 (7 if you count Divine Soul, and guiding bolt is good) bad spells spells before 9th level? Most games don't even make it much further than that, and twinning the good 5th-level plus spells is so expensive that it really isn't feasible at that point.

Considering the supreme importance of action economy and how so many of the best spells require concentration, Twinned Spell really helps you get the most out of Haste (available at 5th level), Greater Invisibility (at 7th level), and Polymorph (at 7th level).  But yeah, it's hard to pick this metamagic early in the game with that cost; if you do, Twinned Suggestion can be a good choice for quickly turning the tables on a group of enemies.

Quote from tyranttoxicroak >>

Also Quicken, how exactly does that fix the problem of spell count? It really doesn't even fix the power issue, as according to RAW you cannot cast a leveled spell as both an action and a bonus action, you have to cast a cantrip as one of them. While cantrips get decently powerful later on, again, the fact that most campaigns top out around 10th level means that it really isn't doing them many favors.

Again, this is a matter of action economy.  You have a limited amount you can do each turn, and there are lots of times you really want to do two things at once.

A good Sorcerer should usually think of Quickened Spell as a way to save the day, not a way to boost your raw power.

• It lets you get away from a sticky situation with an extra Disengage, Dodge, Dash, or Hide, and you can combine that with spells like Shocking Grasp or Fly or especially Haste, which not only gives you +2 to AC and advantage on Dex saves but also gives you a second action so you can Disengage and Dash/Hide/Dodge, or just double Dash to get out of range.
  
  
• Quickened Spell lets you Use an Item and still get a spell in on the same turn, which can be very clutch and makes you probably the best character to give items that cost an action to use.  In a bad situation, being able to administer a potion and still cast a spell can make the difference between life and death.
  
  
• And yes, there are some cantrips (other than Shocking Grasp) that can be worthwhile.
  • If you want extra assurances that a spell with a saving throw will stick on an enemy, cast Mind Sliver on the target, and if they fail their Intelligence save (which is most creatures' lowest save) not only do they take some damage but they'll also have to subtract a d4 from their saving throw against your Quickened spell.  (If you're a Divine Soul Sorcerer or you took a level of Bard, you can stack this effect with Bane, and use each spell to help the other one stick.)
    
    
  • When you can cast your main spell as a bonus action, you can afford to make creative use of cantrips like Mold Earth or Minor Illusion in combat.  For example, even in an open field you can defend yourself or an ally use Mold Earth to instantly create cover or Minor Illusion to heavily obscure a target.  You might not want to do that if it cost you the opportunity to cast a more powerful leveled spell, but with Quicken Spell you can do both. 
    For that matter, a DM need not be very lax to allow a double-casting of Mold Earth to instantly bury one Medium (or smaller) foe with literally tons of dirt.
    
    
  • Sometimes a simple Ray of Frost can slow an enemy down just enough to give you that edge.  In a chase, you often want to use your action to Dash, but your enemies are just as fast; if you can Dash and slow an enemy's speed by 10 feet, you can cut her movement per turn by 20 feet and gain the lead.  Or, before you throw a Quickened Sickening Radiance on a group of foes, you hit one of them with the Ray of Frost so he has to use his action to Dash to get out of the area of effect on his next turn or else take that extra crippling point of exhaustion and risk getting trapped.  (Same for keeping enemies in the area of a Hunger of Hadar or Evard's Black Tentacles if you're an Aberrant Mind Sorcerer.)

But there are some specific combos that do boost your raw power.

• Quicken Hold Person and you still have your action to do terrible things to your paralyzed target on the same turn.
• Quicken Polymorph on yourself and you still have your action to attack (or whatever) instead of waiting for your next turn.
• At 9th level, Quicken Spell allows you to take total control with Dominate Person on the same turn you cast it (and rob the target of its reaction too), or take a second action with Telekinesis on that first turn.
• At 11th level, you can Quicken Sunbeam and use your action to fire a second line of 6d8 radiant damage on your first turn.

That said, Quicken Spell is a bit expensive in the early game, so if you take that metamagic before 10th level you should only use it in emergencies until you get more sorcery points under your belt.

Quote from tyranttoxicroak >>

Sorcerer is a fun class flavor-wise, and a DS Sorc being able to twin Heal and Revivify makes them a powerful Cleric stand-in that can still really blast. I've made a Swords Bard/DS Sorc red mage character that is quite powerful and fun to use, but you also have to remember the fact that the bard is in there mean they have access to many more utility and support spells without sacrificing damaging spells too much.

Creativity can take you far in this game, but so many rules both within and outside of the class severely gimp it in both power and support potential, and almost completely kill any creative uses unless you have a VERY lax DM.

I think lax DMs are the main reason people don't appreciate the best thing about being a Sorcerer: Subtle Spell.

Subtle Spell isn't just for flavor; it's a literal game-changer.  It allows you to do many things no other class can do.  It makes many spells powerful in situations where other classes can't use them at all.  It makes your clutch spells immune to Counterspell.  And it only costs one sorcery point.

It would take pages to list all the ways Subtle Spell gives you freedom and potency that other casters only wish they had.  But here are a few examples:

• If you're a caster suddenly thrust into a social situation, you might be tempted to cast charm spells to gain an ally, or Enhance Ability or Guidance to give yourself or your allies an edge on Charisma checks, or Detect Thoughts to gain insight into their motives, or Tongues, or some special effect to make your party seem impressive, but if your DM actually thinks about verbal and somatic components, you can't just start openly casting spells that require chanting and intricate gestures because you'll make everyone highly suspicious of what you're doing and maybe have to roll initiative... unless you have Subtle Spell.
  • For example, if a Bard, Warlock, or Wizard tries casting Suggestion, everybody sees and hears the casting of the spell, so they know what's going on when the target follows the caster's command.  If you cast Suggestion with Subtle Spell, it's a mystery why the target is doing what you told him to do; maybe the target was a traitor all along, or he just seems to have been persuaded or intimidated.  (Even more absurdly powerful if you have telepathy, like a Kalashtar, so you can give orders to any creature that understands any language without anyone but the target hearing your command.  If you can't think of ways to make that character terrifying, you don't deserve to play a Sorcerer.)  And that's a 2nd-level spell!
    
    
  • Similarly, if a Cleric wants to use Geas, she needs to somehow stay in range and uninterrupted for ten rounds while she chants words of divine power.  But if you're a Divine Soul Sorcerer, you can just casually loiter within 60 feet of someone to stealthily turn him into your ally for the next month.  Before anyone knows what's going on, you have half the town guards on your side.
    
    
  • When you're trying to spook or impress the locals, good DMs know Subtle Spell is just better.  The unwashed masses can wrap their heads around a caster openly casting a spell, because they can see cause and effect: Wizard draws patterns in the air with his fingers and says some precise gibberish, which leads to a sparkly light show.  But if strange things just start happening, that's much more intriguing / mysterious / intimidating.  The townsfolk don't have warning, and they can't be sure who's responsible.  In fact, from now on they can't necessarily tell whether things that happen are coincidences or maledictions:
    • "Maybe that structure fire was an accident, but I have seen a man set a blaze with nothing more than a glance.  Even with the city watch observing everyone who passed by the building, we can't know this wasn't arson."
    • "It's possible Old Jasper just died of a stroke or a brain aneurysm during the harvest festival, but how can we be sure it wasn't magical paralysis and psychic damage?  I saw that impudent young widow nearby when he keeled over."  "More likely it was the doctor who 'tried to help' when Jasper collapsed."
    • "I felt like that handsome lad made some reasonable points, but after I followed his advice and it turned out so badly, I started to wonder if he beguiled me..."
    • "I'm not crazy!  I tell you, someone is making me see and hear things that aren't there!"
• Is there a good chance of combat soon?  Maybe you're in a standoff, or you suddenly see enemies nearby but they haven't noticed your party yet, or they haven't seen through your disguise. But as soon as someone starts casting a spell that requires chanting and/or gesticulating, it's time to roll initiative, and you have maybe one round of surprise.  Then again, if you have Subtle Spell, you can start turning the odds in your favor before anyone starts fighting: start buffing and debuffing, shape the battlefield, turn your enemies against each other (several charms, like the Dominate spells, allow the target to make the saving throw at advantage if you're already fighting), make some of them run away, or create enough confusion that they can't coordinate to fight.  Considering that most combat is done in a small number of rounds, getting some free turns to act can be a huge advantage.
  
  
• Are there vigilant guards watching to make sure there's no funny business? Say you're required to sit on the sidelines while your friend brawls one-on-one in the fighting pit, and bouncers are ready to pounce on magical cheaters.  Or you're in prison, and the wardens are keeping an eye on you.  Or you're being tightly escorted through a fortress that's on high alert, and you have things you need to accomplish before you're delivered to the commander.  Or you're trying to keep your cover intact and not attract attention while you collect intelligence (e.g. Detect Thoughts) or cause trouble deep inside enemy headquarters.  Most casters can't do much in these situations without starting a fight.  But with Subtle Spell you can pull all kinds of hijinks right under everyone's noses.
  
  
• Unlike other casters, a Sorcerer can cast most spells with a verbal component while hidden and stay hidden without needing to use Greater Invisibility or the like.  This doesn't work with attack spells or spells that have an obvious point of origin, like lightning springing from your hands, but that still leaves you a lot of options.
  
  
• Are you bound and gagged?  Are you in a Silence field?  Does your DM penalize spellcasting with verbal components underwater?  Are your hands clinging to a ledge, a horse's reins, or an object you don't want to drop?  These are all serious impediments for other casters, but not for a Subtle Sorcerer.  In fact, in a caster duel you might be the one casting Silence: in that big bubble, you can cast spells that require verbal components (which is almost all of them) but he can't.
  
  
• Do you want to be the ultimate assassin?
  • You can cast Disguise Self or Alter Self without drawing attention to yourself as you walk through a crowd or around a corner.  Such spells are good for getting close to targets and for getaways, but also for pinning the blame on others; you might even cast a Subtle Polymorph to turn into a bat to make people think you're a Vampire, or into some other beast so people think you're a Druid using Wild Shape.
    
    
  • In addition to disguises, you can charm your way around NPCs, both with Subtle charm spells and your high Charisma—while boosting your Charisma checks with a timely Enhance Ability.
    
    
  • Where charm won't work, you can cast Greater Invisibility or Dimension Door without so much as a murmur, or undetectably use Enhance Ability to gain advantage on Dexterity checks (including Stealth, Acrobatics, Sleight of Hand, Thieves' Tools, and initiative rolls) and avoid falling damage while you attempt to climb between balconies or jump from a second-story window.
    
    
  • You could turn that powerful bodyguard into your puppet (e.g. with Dominate Person) and have him attempt to assassinate the target for you, with nobody knowing you were responsible.
    
    
  • If you're a Divine Soul, you can put a target at a severe disadvantage with a handshake or a friendly pat on the back empowered by a Subtle Bestow Curse or, at higher levels, a Subtle Contagion.
    
    
  • Sorcerers have quite a few damaging spells that don't have an obvious point of origin, and you could cast a string of them to harm a target all while walking by with your hands in your pockets and your mouth shut, or while standing silently in an audience, or while sipping a drink at a banquet, or while hiding in the shadows.  You could even make it look like an accident or a suicide if you're creative enough.

Once you start thinking about the Sorcerer spell list with Subtle Spell in mind, the opportunities for creative ways to power through situations just keep leaping to mind, and you realize you can build your game around it.

Yea, Like could at least give them control winds and call lightning as free spells. Or a storm elemental transformation.

With DM permission anything is possible ! 

Storm sorcerer’s not getting any storm summoning spells is major blue balls I want my dude to sink armadas, drown army’s, the best thing I can do tho is manipulate already stormy weather to not bother me and co. 

Quote from Knifel >>

I have a genuine question because I would like to see how powerful this class could get;

Without using home-brew, is there a way for a Sorcerer to learn spells that are not in their spells known table?

Another thing is can they expend their sorcery points to meta-magic spell scrolls?

Thanks in advance, my curiosity leads me places to where my mind can't comprehend.

 dragonmark races or ravnica backgrounds

That sucks like spend points for an hour

6th level, you can spend a sorcery point to get it for one hour.

"Starting at 6th level, when you cast a spell that deals damage of the type associated with your draconic ancestry, you can add your Charisma modifier to one damage roll of that spell. At the same time, you can spend 1 sorcery point to gain resistance to that damage type for 1 hour."

Generally I'll wait to be hit with a spell of the type and use absorb elements, at which point you can spend the sorcery point to gain resistance for an hour.

Twin? That metamagic that works with 6 (7 if you count Divine Soul, and guiding bolt is good) bad spells spells before 9th level? Most games don't even make it much further than that, and twinning the good 5th-level plus spells is so expensive that it really isn't feasible at that point. 

Also Quicken, how exactly does that fix the problem of spell count? It really doesn't even fix the power issue, as according to RAW you cannot cast a leveled spell as both an action and a bonus action, you have to cast a cantrip as one of them. While cantrips get decently powerful later on, again, the fact that most campaigns top out around 10th level means that it really isn't doing them many favors.

Sorcerer is a fun class flavor-wise, and a DS Sorc being able to twin Heal and Revivify makes them a powerful Cleric stand-in that can still really blast. I've made a Swords Bard/DS Sorc red mage character that is quite powerful and fun to use, but you also have to remember the fact that the bard is in there mean they have access to many more utility and support spells without sacrificing damaging spells too much.

Creativity can take you far in this game, but so many rules both within and outside of the class severely gimp it in both power and support potential, and almost completely kill any creative uses unless you have a VERY lax DM.

Quote from Orsamannen >>

So you dont get resisctense to The damage type assosciated with your draconic heritage if im reading this right

 At 6th level you can spend a sorcey point to get resistance for an hour. So yes, you don't automatically get resistance.

I think the only way for them to learn spells like that would be racial abilities or feats like Magic Initiate. You could use metamagic on those spells like normal, though you could only cast them once a day or something like that.

As for scrolls, the DMG states that you replicate the spell at its most basic form when creating a scroll. You might be able to use metamagic when casting a spell from a scroll, but I'm unsure about that.

Hope that helped :)

I have a genuine question because I would like to see how powerful this class could get;

Without using home-brew, is there a way for a Sorcerer to learn spells that are not in their spells known table?

Another thing is can they expend their sorcery points to meta-magic spell scrolls?

Thanks in advance, my curiosity leads me places to where my mind can't comprehend.

Quote from tyranttoxicroak >>

Can we please just admit that Sorcs don’t get enough spells known? Cmon, 4 other classes get to pick their spells every day, 3 of those also get 10 extra spells for free, 2 of them get 1d8 for hit dice, and they all have other good class/subclass mechanics in addition to the spells. Bards get 23 spells, Warlocks get 18 (also problematically limited, but they get 4 5th levels that they get back on a SR so it isn’t quite so bad), and what do Sorcs get? 15, and 6 cantrips. They start with only 2 spells, and don’t even get the main thing that people claim makes them not underpowered until 3rd level. I can see this is being rectified in almost every new subclass, so it’s obvious Wizards knows it’s a problem. But if they’re going to do that with the new subclasses, they all need to be given extra spells.

Admit? Never. Haha. This class, regardless of subclass, is only limited to the amount of creativity of its player. Meta magic is very powerful when paired with creativity. If spell count is the concern, lets consider both twin spell and quickened spell to maximize our damage. 

3 full casters get a d8 actually Druid Bard and cleric, four if you count warlock 

So you dont get resisctense to The damage type assosciated with your draconic heritage if im reading this right

DDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRAAAAAAAAAAAAAAAAAAAAAAAAAAAGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGOOOOOOOOOOOOOOOOOOOOOOONNNNNNNNNNNNNNNNNNNNSSSSSSSSSSSSSSSSSSSS

Can we please just admit that Sorcs don’t get enough spells known? Cmon, 4 other classes get to pick their spells every day, 3 of those also get 10 extra spells for free, 2 of them get 1d8 for hit dice, and they all have other good class/subclass mechanics in addition to the spells. Bards get 23 spells, Warlocks get 18 (also problematically limited, but they get 4 5th levels that they get back on a SR so it isn’t quite so bad), and what do Sorcs get? 15, and 6 cantrips. They start with only 2 spells, and don’t even get the main thing that people claim makes them not underpowered until 3rd level. I can see this is being rectified in almost every new subclass, so it’s obvious Wizards knows it’s a problem. But if they’re going to do that with the new subclasses, they all need to be given extra spells.

Best class ever.

"Study and practice are for amateurs, true power is a birthright."