It's a half drow, Starting stats after racial mods are
10 14 14 11 13 16
Progression is
Rogue 1
Warlock hexblade 1, booming blade, eldritch blast, armor of agathys (sp?), hex (debating between this an hellish rebuke because I have faerie fire from half drow as a concentration spell)
Rogue 2-4, swahbuckler, boost cha to 18.
Warlock 2, devils sight (to pair with darkness from.half drow) and mask of many faces, second spell slot
Bard 1, mage hand, minor illusion (to make a rock for me to hide behind or inside), spells feather fall, healing word, silvery barbs, Tasha's hideous laughter (I honestly think bard has the best level 1 spells in the game), picks up arcana as a skill
Rogue 5
Knight 1-4, dueling, echo knight, ritual caster (find familiar and identify), regarding echo knight the mask of many faces eldritch invocation was to make me look like my echo and at will teleporting.
Rogue the rest of the way, picking up elven accuracy boosting cha at Rogue 8, Telepathic boosting cha at Rogue 10, skills to pick up 3 new skills at Rogue 12 which is right after rogue 11 where I got reliable talent (at this point its effectively a +11 on average to 3 skills and I'm guaranteed a 16 or higher on them)
I'm kind of thinking of dropping Rogue 13 in favor of warlock.3 I'd loose a sneak attack die but would be able to use Warlock spell slots
It might be easier to help if you could explain a bit of what you're trying to achieve with this build. What kind of role are you looking to play in the paly in the party or what is the concept behind the character?
The character concept is moonknight-esque in that he made a pact with a twighlight domain god or god of vengeance or similar entity along the lines of
Khonshu: "Do you swear to protect the travelers of the night and bring my vengeance to those who would do them harm?"
I was initially thinking half elf paladin oath of vengeance/ warlock heblade multiclass, but it turned out that an eladrin swashbuckler rogue, with warlock 4 (to get second levels spell slots, and an attribute increase, invocations are devil sight and improved pact weapon to use with longbow to deliver sneak attack) and bard 1 (faerie fire, feather fall, healing word, silvery barbs) was a better fit to the concept.
But the current build is an experiment to see if I can get even closer because I read a multiclass with echo knight is effective article online so this build was a "can I use echo knight to get unlimited teleports and cram more capability into it" the experiment but I kind of think I'm trying to cram too much in.
So what I'm looking for is
A mostly S.A.D. sword and sorcery rogue (skillful/striker/thief) with "functional" magic not just "trickery" magic, e.g. his owl familiar can fly to a window so he can see inside the room to teleport past the trapped door so he can just safely open it from the inside.
I want to be able to teleport fairly often
So either echo knight for unlimited teleports, or eladrin (monsters of multiverse version) for proficiency bonus per day, or high elf with fey teleportation (once per short rest), or half elf with fey touched (yeah that's only once per day without expending a spell slot but it's also learn 2 spells)
I really want to be able to use elven accuracy (regular advantage changes to "double advantage")
Darkness and devil's sight is one way to get advantage, faerie fire is another, silvery barbs is another, hiding is another, using owl to momentarily flank is another, etc.
I realize swashbuckler doesn't need advantage to deliver sneak attack but criting on sneak attack (so Rolling 3 d20's gives about a 27% chance to crit instead of the regular 5%)
Trickery magic that makes functional magic more effective is ok.
And I want to be able to stim fallen comrades back up (the paladin laying hands or the bard healing word spell)
So a lot of this stuff doesn't really have any synergy, multiclassing more than 2 classes is usually not advisable and especially not if you're new to 5e, it's easy to end up with something that looks cool on paper but is fairly meh to play.
Just a note if you're looking to play this guy in an actual game, most games only average about lvl 11 ish so it may be a good idea to plan something you be happy playing if it only got to there. Unless this is just a theory craft build.
I'm not totally certain what to suggest because I havent see the show but based on you're description I've put together something that hits a fair amount of things I think
Shaderkai- motm similar to eladrin which works too but the rider on their teleport seems more thematic.
Lvl 5 whispers bard, bards can pick any 3 proficiencies they want with the right spells and flavor they can make great rogue like characters. Whispers gets even closer to rogue with a pseudo sneak attack
Lvl 5 hexblade, for the original stuff and eldritch smite
This will play more like a half caster but still be able to do quite a bit. If you feel it needs more teleports picking up misty step via warlock or fey touched works as you'll have plenty of slots to play around with 9+ 2 warlock instead of the original 4. If you do go further maybe look Into shadow of moil at warlock 7 for the advantage. Darkness and devils sight sounds cool but doesn't usually work all that well in play because you're part of a team.
I'm sure ive missed something but am at work so haven't been able to look everything up and over
The silverquill student background (strixhaven) gets me a little less than half of what I wanted from bard 1. I get faerie fire that I can cast once per long rest without expending a spell slot, choice of 2 out of 3 decent cantrips (viscious mockery, sacred flame, thaumatology sp?) Persuasion and intimidation skill profficiencies, and it adds spells to my spell list including silvery barbs at level 1 spells.
Viscious mockery, thaumatology, and faerie fire as the silverquill initiate spells (cha casting)
Rogue 1
Hexblade warlock 1-2 (using cha for attack ad damage with rapier, eldritch blast, booming blade, silvery barbs, armor of agathys, and hex, agonizing blast and eldritch mind as invocations) eldritch mind is for concentration on faerie fire and hex.
Rogue 2-4, swahbuckler, Rogue 4 feat is elven accuracy boosting cha to 18.
Warlock 3-4, pact of tome..picking up mind sliver, minor illusion and word of radiance at level W3, at level W4 I retrain eldritch mind to book of ancient secrets (find familiar and identify as the first 2 rituals), and taking warcaster as W4 feat,
I'm dubious about warlock 5 but it would get me 3rd levels spells, boost my warlock spell slots to level 3 and net me an eldritch invocation which I'm undecided between repulsive blast, devils sight, and mask of many faces.
The rest of the build is straight Rogue with skill expert boosting cha at R8, probably resilience (cha) at R10 (also considering fey touched or telepathic to boost cha), R11 us reliable talent, so R12 feat is skilled (3 more skills can't roll less than 10 plus proficiency)
R15 gives proficiency on wisdom saving throws.
What I'm giving up is healing and using a bow (pact of blade with improved pact weapon would let me use cha bonus for attack and damage with longbow that I could sneak attack on, but that was something of a misfit with swashbuckler.
That looks fairly decent, strixhaven backgrounds are fairly setting specific so a decent amount of dm's (at least that i've played with) don't allow them unless it fits the setting but if they ok it this looks good.
Warlock 5 would depend on what you tend to end up using spellslots for, and weather the spell and invocation gained out weighs delaying what you get from rogue. it can always be grabbed later too if it would be better for the character than what you'd pick for the rogue 16 asi.
https://www.dndbeyond.com/sheet-pdfs/EliasWindrider_83003818.pdf
It's a half drow, Starting stats after racial mods are
10 14 14 11 13 16
Progression is
Rogue 1
Warlock hexblade 1, booming blade, eldritch blast, armor of agathys (sp?), hex (debating between this an hellish rebuke because I have faerie fire from half drow as a concentration spell)
Rogue 2-4, swahbuckler, boost cha to 18.
Warlock 2, devils sight (to pair with darkness from.half drow) and mask of many faces, second spell slot
Bard 1, mage hand, minor illusion (to make a rock for me to hide behind or inside), spells feather fall, healing word, silvery barbs, Tasha's hideous laughter (I honestly think bard has the best level 1 spells in the game), picks up arcana as a skill
Rogue 5
Knight 1-4, dueling, echo knight, ritual caster (find familiar and identify), regarding echo knight the mask of many faces eldritch invocation was to make me look like my echo and at will teleporting.
Rogue the rest of the way, picking up elven accuracy boosting cha at Rogue 8, Telepathic boosting cha at Rogue 10, skills to pick up 3 new skills at Rogue 12 which is right after rogue 11 where I got reliable talent (at this point its effectively a +11 on average to 3 skills and I'm guaranteed a 16 or higher on them)
I'm kind of thinking of dropping Rogue 13 in favor of warlock.3 I'd loose a sneak attack die but would be able to use Warlock spell slots
It might be easier to help if you could explain a bit of what you're trying to achieve with this build. What kind of role are you looking to play in the paly in the party or what is the concept behind the character?
The character concept is moonknight-esque in that he made a pact with a twighlight domain god or god of vengeance or similar entity along the lines of
Khonshu: "Do you swear to protect the travelers of the night and bring my vengeance to those who would do them harm?"
I was initially thinking half elf paladin oath of vengeance/ warlock heblade multiclass, but it turned out that an eladrin swashbuckler rogue, with warlock 4 (to get second levels spell slots, and an attribute increase, invocations are devil sight and improved pact weapon to use with longbow to deliver sneak attack) and bard 1 (faerie fire, feather fall, healing word, silvery barbs) was a better fit to the concept.
But the current build is an experiment to see if I can get even closer because I read a multiclass with echo knight is effective article online so this build was a "can I use echo knight to get unlimited teleports and cram more capability into it" the experiment but I kind of think I'm trying to cram too much in.
So what I'm looking for is
A mostly S.A.D. sword and sorcery rogue (skillful/striker/thief) with "functional" magic not just "trickery" magic, e.g. his owl familiar can fly to a window so he can see inside the room to teleport past the trapped door so he can just safely open it from the inside.
I want to be able to teleport fairly often
So either echo knight for unlimited teleports, or eladrin (monsters of multiverse version) for proficiency bonus per day, or high elf with fey teleportation (once per short rest), or half elf with fey touched (yeah that's only once per day without expending a spell slot but it's also learn 2 spells)
I really want to be able to use elven accuracy (regular advantage changes to "double advantage")
Darkness and devil's sight is one way to get advantage, faerie fire is another, silvery barbs is another, hiding is another, using owl to momentarily flank is another, etc.
I realize swashbuckler doesn't need advantage to deliver sneak attack but criting on sneak attack (so Rolling 3 d20's gives about a 27% chance to crit instead of the regular 5%)
Trickery magic that makes functional magic more effective is ok.
And I want to be able to stim fallen comrades back up (the paladin laying hands or the bard healing word spell)
So a lot of this stuff doesn't really have any synergy, multiclassing more than 2 classes is usually not advisable and especially not if you're new to 5e, it's easy to end up with something that looks cool on paper but is fairly meh to play.
Just a note if you're looking to play this guy in an actual game, most games only average about lvl 11 ish so it may be a good idea to plan something you be happy playing if it only got to there. Unless this is just a theory craft build.
I'm not totally certain what to suggest because I havent see the show but based on you're description I've put together something that hits a fair amount of things I think
Shaderkai- motm similar to eladrin which works too but the rider on their teleport seems more thematic.
Lvl 5 whispers bard, bards can pick any 3 proficiencies they want with the right spells and flavor they can make great rogue like characters. Whispers gets even closer to rogue with a pseudo sneak attack
Lvl 5 hexblade, for the original stuff and eldritch smite
This will play more like a half caster but still be able to do quite a bit. If you feel it needs more teleports picking up misty step via warlock or fey touched works as you'll have plenty of slots to play around with 9+ 2 warlock instead of the original 4. If you do go further maybe look Into shadow of moil at warlock 7 for the advantage. Darkness and devils sight sounds cool but doesn't usually work all that well in play because you're part of a team.
I'm sure ive missed something but am at work so haven't been able to look everything up and over
The silverquill student background (strixhaven) gets me a little less than half of what I wanted from bard 1. I get faerie fire that I can cast once per long rest without expending a spell slot, choice of 2 out of 3 decent cantrips (viscious mockery, sacred flame, thaumatology sp?) Persuasion and intimidation skill profficiencies, and it adds spells to my spell list including silvery barbs at level 1 spells.
And pact of the Tome gets me most of the rest.
So now I'm thinking
Shadrakai 10 14 14 10 10 17 after racial attribute increases
Viscious mockery, thaumatology, and faerie fire as the silverquill initiate spells (cha casting)
Rogue 1
Hexblade warlock 1-2 (using cha for attack ad damage with rapier, eldritch blast, booming blade, silvery barbs, armor of agathys, and hex, agonizing blast and eldritch mind as invocations) eldritch mind is for concentration on faerie fire and hex.
Rogue 2-4, swahbuckler, Rogue 4 feat is elven accuracy boosting cha to 18.
Warlock 3-4, pact of tome..picking up mind sliver, minor illusion and word of radiance at level W3, at level W4 I retrain eldritch mind to book of ancient secrets (find familiar and identify as the first 2 rituals), and taking warcaster as W4 feat,
I'm dubious about warlock 5 but it would get me 3rd levels spells, boost my warlock spell slots to level 3 and net me an eldritch invocation which I'm undecided between repulsive blast, devils sight, and mask of many faces.
The rest of the build is straight Rogue with skill expert boosting cha at R8, probably resilience (cha) at R10 (also considering fey touched or telepathic to boost cha), R11 us reliable talent, so R12 feat is skilled (3 more skills can't roll less than 10 plus proficiency)
R15 gives proficiency on wisdom saving throws.
What I'm giving up is healing and using a bow (pact of blade with improved pact weapon would let me use cha bonus for attack and damage with longbow that I could sneak attack on, but that was something of a misfit with swashbuckler.
Thoughts?
That looks fairly decent, strixhaven backgrounds are fairly setting specific so a decent amount of dm's (at least that i've played with) don't allow them unless it fits the setting but if they ok it this looks good.
Warlock 5 would depend on what you tend to end up using spellslots for, and weather the spell and invocation gained out weighs delaying what you get from rogue. it can always be grabbed later too if it would be better for the character than what you'd pick for the rogue 16 asi.
The 3rd level spell would probably be major image, remove curse, and thunderstep.