Quote from lowengrimm >>

Would an antimagic field have any effect on the bladesong class feature?

 I’m pretty sure that Bladesong is a magical effect if I’m not mistaken! It even says “the magic of the bladesong” in its wording.  

Now would this have any effect on say any features like warlock's class features. I know it states that, "Spells and other magical effects, except those created by an artifact or a deity, are suppressed in the sphere and can't protrude into it."

I'm just curious if that means stuff that class features from spellcasting classes are also effected or not. Would a druid, not be able to use their wild shape? Would a ranger not be able to use their spells since some of them can be flavored more to be non magical. Stuff like that.

So it seems like if you use a magic bow to shoot an arrow out of the field from the inside, it's treated as a normal arrow because the magic of the bow is still suppressed, or because the bow was normal when the arrow left it. An interesting niche use for magical ammunition and thrown weapons, which are otherwise normally worse than a magical bow.

Quote from Minvis >>

What would this do to an artificer's infusion? Or for that matter things like their homunculus, arcane torrents and steel defenders? RAW I don't think this would effect an armorer's arcane armor but their armor is called arcane armor. So would an armorer temporarily lose their arcane armor?

 Infusions are very specifically magical and won't work. Good point about arcane armor, it's not explicitly called magical anywhere, but I think it's pretty clear it should stop working inside the field.

Quote from Dragonslayer9 >>

 It’s correct. Besides, if it were correct they would just deanimate (and no I don’t care that’s not a word. It should be.)

 The word is disanimate, de- is normally used for words that otherwise start with s. de-struct, de-scend. But there's exceptions like deploy, which does originate from de/dis. Interestingly the french root word deployer, comes from the latin word deplicare. The word display also comes from french and before that displicare, essentially the same word as deplicare. 
Ironically, the classical meaning of the word display was almost the same as the meaning of deplicare, to unfurl or unfold, while displicare could mean to scatter, and what is deploying things if not scattering them, in a way. 
Sorry for the weird latin/linguistics tangent. I thought it was interesting. 

This seems like one of those spells that's intended mainly for DMs to use against players. It works great for a boss monster/npc who has other potent abilities that don't require magic. In the hands of a player, however, I'm having trouble seeing the value in a 20 ft no magcix bubble that comes at the expense of turning your caster into a 15 hit die commoner (or a slightly sturdier town guard if you're a cleric). I can think of only a handful of extremely unlikely scenarios where that would yield any real value. That being said, if your party does manage to catch Manshoon taking a bath, you should have an easy win as long as jumping on a naked evil archmage isn't too out of character for your wizard/cleric. Of course Mansy gets to his acid filled rubber ducky before you manage hug him, you might end up wishing that bottle of bad tasting, flat soda that you overpaid for was still a functioning healing potion (assuming said bottle wasn't one of the items ejected from the sack on your hip that isn't currently a functioning bag of holding).

Pov: The party eating popcorn while watching the parties wizard and the evil wizard (BBEG) 1v1ing it in a antimagic field with 8 strength

Thx for everyone who answered the first part of my initial question.

But what happens to creatures that can only be harmed by magical weapons inside an AF? Are they invulnerable as long as they are in the field cause every magic weapon is now mundane or do they also loose this protection and can be harmed by non-magical weapons?

Wild shape no, Breath weapon yes.

It probably would. But it is a lvl 1-5 campaign and this is an 8th lvl spell.

Quote from ShaydyCharacter >>

Quote from Minvis >>

What would this do to an artificer's infusion? Or for that matter things like their homunculus, arcane torrents and steel defenders? RAW I don't think this would effect an armorer's arcane armor but their armor is called arcane armor. So would an armorer temporarily lose their arcane armor?

 Infusions are very specifically magical and won't work. Good point about arcane armor, it's not explicitly called magical anywhere, but I think it's pretty clear it should stop working inside the field.

Quote from Dragonslayer9 >>

 It’s correct. Besides, if it were correct they would just deanimate (and no I don’t care that’s not a word. It should be.)

 The word is disanimate, de- is normally used for words that otherwise start with s. de-struct, de-scend. But there's exceptions like deploy, which does originate from de/dis. Interestingly the french root word deployer, comes from the latin word deplicare. The word display also comes from french and before that displicare, essentially the same word as deplicare. 
Ironically, the classical meaning of the word display was almost the same as the meaning of deplicare, to unfurl or unfold, while displicare could mean to scatter, and what is deploying things if not scattering them, in a way. 
Sorry for the weird latin/linguistics tangent. I thought it was interesting. 

 Arcane is magic. So arcane armor is magic armor.

And there is already a word unanimated.

I just don't understand this spell. The range of self makes it pretty useless in most situations, since as an 8th level caster, your own magic is your greatest asset

Imagine your party is fighting an evil wizard in their castle and they need to get through lots of magical traps, constructs, illusions, ect. The party's cleric tells everyone to gather round, casts AF and then your whole party can stroll right into the wizards inner sanctum without any issues, and then just stop concentrating so they have all their power for the fight. Sure its not something you use every sessions, but in the right it can be a very powerful spell well worst an 8th level slot of used right!

Wait so everyone in the rope trick space is just completely trapped?

Could you do Time stop, and then Antimagic Field ?   

It could be an interesting strategy against magic casters for the cost of 8th and 9th level spell slots . 

Quote from Helcostr >>

Once this spell is cast, is it possible for another spell caster inside the bubble to concentrate on maintaining a spell that exists outside of the bubble?

Can information from Arcane Eye (existing outside of the bubble) be received from another spell caster who is inside the bubble?

The spell says nothing about disrupting concentration, so it doesn't.  Concentration isn't a magical effect itself, it's a mechanic for maintaining a magical effect.

For the Arcane Eye question, I would say your reception of information from it would be suppressed while in an antimagic field since that is an effect of the spell.

Quote from Appellion >>

The one vaguely irritating thing to me is that the radius is so small.  But I suppose that a dragon could technically still use it, as the radius uses you as a focal point, I guess it extends 10 feet from every point on the dragons body?  My own feeling is that the spell is utterly useless for Player's but the effect description is useful for DM's to create areas of antimagic.  

 I hardly think granting immunity against magic to yourself and all the people around you (which could easily include your whole party) is "utterly useless".

Quote from Minvis >>

I think they'd be unaffected by the Earthquake. If it created a permanent fissure that was no longer being sustained by magic then I think the wizard could fall in.

Quote from Minvis >>

I think they'd be unaffected by the Earthquake. If it created a permanent fissure that was no longer being sustained by magic then I think the wizard could fall in.

 The spell opens fissures.  Nothing about it says those fissures close once the spell ends.  Fissures don't just close on their own.

The duration of the spell applies to the earthquake itself, not to any damage caused by the earthquake.  By your thinking, any building collapsed would just un-collapse at the end of the spell.

Quote from Bonfatti >>

Could a wizard with this spell fall in a fissure of the Earthquake spell? Or would the fissure would just don't appear beneath him? (sorry don't know how to indicate a spell) 

 If the fissure already existed when he cast the spell, the wizard would still fall into it.  Once the fissure is opened, it is there to stay, and the spell doesn't cancel gravity.

If it did not, then yes, the spell would prevent a fissure from opening up underneath the wizard as opening a fissure is an effect of the spell.

Quote from Yselieg >>

Does a dragon's breath count as magical for the purposes of this spell?

The test for whether something is a magical effect is whether it comes from a spell, comes from a spell slot, or is explicitly described as magical.  A dragon's breath weapon does not pass any of these tests.

Quote from YellowKryptonite >>

Paladin abilities are also suppressed? Like smite wouldn't work and you could get a disease?

 Since a divine smite is fueled by spell slots, it qualifies as a magical effect and thus would be suppressed.