D&D 5E Best MultiClass character build? Why?

[Eyes of Nine]

I don’t know about it being “the best multiclass build,” but taking your first level in Fighter is amazing for a Bladesinger wizard. You get higher starting HP, Second Wind, a fighting style (Dueling if you want to use a rapier and keep one hand free, defense if you want to pump your AC as high as humanly possible, or dual-wielding if you want to maximize your DPR), and most crucially, proficiency in Con saves. All at the low cost of delaying your Wizard progression by one level, and if you go all the way to 20th level, missing your capstone. Well worth it in my opinion.

One of the players in my group did that. I thought he was a fighter, but turns out he's a wizard; but with I guess one level of F. He'll still get access to Wish, so there's that.

 

[Eyes of Nine]

Sorlock is a very popular build for a reason. Being able to exchange warlock spell slots for sorcery points that recharge on a short rest means a bucket load of sorcery points.

How many levels of which class do people take?

 

[Eyes of Nine]

barbarian (totem or berserker) goes well with moon Druid for a beorn-like skinchanger.

Hold the phone, this sounds very intriguing.

 

[Fenris-77]

That Gloomstalker/Shadow Monk build of DBWs above is a fav of mine too. Very ninja. I'm also a big fan of the old standby Gloowstalker/Rogue assassin build. Assassins are such friendly fellows, everyone is always happy to have on in the party.

 

[Eyes of Nine]

Gloom Stalker Ranger 5 (Archery Style), Rogue Assassin 1-15. Wood Elf, with Elven Accuracy.

What I've always wanted to play is a Shadow Monk/Rogue (not sure of subclass), but somehow have never gotten around to it.

I think another player in my group is playing the GSRanger / Assassin character. Of course in Mad Mage, it seems like all the monsters have tremorsense or blindsight

 

[Fenris-77]

I played a Halfling Diviner/Lore Bard as a Dirk Gently style detective. That's probably the most fun I've ever had playing a MC character.

 

[Charlaquin]

One of the players in my group did that. I thought he was a fighter, but turns out he's a wizard; but with I guess one level of F. He'll still get access to Wish, so there's that.

Yeah, I’m planning to do that for a Humblewood campaign I’ll be joining as a player soon. Narratively, the character was a member of a bandit gang (gaining that fighter level) but deserted after f, which is where he got his Fighter training, but when he found a spellbook among the take of a robbery he was supposed to fence, he ran off with it. So, my future wizard levels will be what he manages to figure out from studying the stolen spellbook.

 

[Charlaquin]

How many levels of which class do people take?

Warlock 2, Sorcerer 18. Warlock 2 gets you two spell slots that recover on a short rest, Eldritch Blast, and two Invocations, which you use to get Aginizing Blast to boost your EB damage and Aspect of the Moon so you don’t need to sleep. Then, while the rest of your party is taking a long rest, you convert your two Warlock spell slots into sorcery points, rest for an hour to get your two warlock spell slots back, rinse and repeat 8 times for 16 free sorcery points. If you take The Celestial as your Warkock patron and/or Divine Soul as your Sorcerous origin, you can even Cure Wounds yourself, which means you never actually need to take a long rest, which means your Sorcery Point total never resets, so after like a week of downtime you have functionally infinite Sorcery Points. And all of this is AL legal, though I imagine most AL DMs will still tell you no. The “coffeelock” is probably the “best” multiclass build from a purely theoretical, white-room analysis min/max perspective. But it’s kinda boring, most DMs probably won’t allow it, and in practice it’s not really as game-breaking as it looks on paper.

 

[Zardnaar]

A few contenders.

Death cleric 1/divine Soul XYZ

Life cleric 1, druid XYZ or lore bard 6+.

Eldritch Knight 6/wizard XYZ

Paladin 6 or 8, warlock/sorcerer/bard xyz

Rogue with fighter or ranger levels. Various combinations.

 

[NaturalZero]

Warlock 2, Sorcerer 18. Warlock 2 gets you two spell slots that recover on a short rest, Eldritch Blast, and two Invocations, which you use to get Aginizing Blast to boost your EB damage and Aspect of the Moon so you don’t need to sleep. Then, while the rest of your party is taking a long rest, you convert your two Warlock spell slots into sorcery points, rest for an hour to get your two warlock spell slots back, rinse and repeat 8 times for 16 free sorcery points. If you take The Celestial as your Warkock patron and/or Divine Soul as your Sorcerous origin, you can even Cure Wounds yourself, which means you never actually need to take a long rest, which means your Sorcery Point total never resets, so after like a week of downtime you have functionally infinite Sorcery Points. And all of this is AL legal, though I imagine most AL DMs will still tell you no. The “coffeelock” is probably the “best” multiclass build from a purely theoretical, white-room analysis min/max perspective. But it’s kinda boring, most DMs probably won’t allow it, and in practice it’s not really as game-breaking as it looks on paper.

Yeah. The "coffeelock" is the full cheese version!

Pretty much any warlock/sorc combo is pretty good though and I'm currently running the opposite (Sorc3/War17) to try out the UA warlock material. Pact of the Chain with an Imp familiar is amazingly useful from a non-combat perspective too, and you still get a ton of spell points with this inverse class combination. I'm a warforged, and since the party usually sleeps 8 hours, i get 2 free hours a night to convert spell points with 6 hours of sentry's rest and an eladrin with a 4 hour trance would get 4 free hours. The genie warlock at level 11 gets one free 10 minute short rest per day, so you could hypothetically cheese out 5 short rests worth of spell points every day before the rest of the party is ready to go. At 11th warlock level, with 5th level slots, that's 15 points x5 short rests per morning, but of course the 3 sorc levels means this absurd amount of points comes online really late.