Sorcerer / Warlock “Coffeelock”Multiclass Build Guide — D&D 5e

The Coffeelock exploits a loop at the intersection of two resource systems. Warlock Pact Magic slots recharge on a short rest. Font of Magic lets a sorcerer convert spell slots into sorcery points and sorcery points back into spell slots. Chain them together: short rest, recover Pact Magic slots, convert those slots into sorcery points, convert those points into sorcerer spell slots. Repeat. The result is a character who banks more slots than any long-rest caster is supposed to have.

The build is genuinely powerful and genuinely contentious. RAW, nothing caps how many spell slots you can create with sorcery points, so a Coffeelock who takes eight short rests before a fight walks in with a stack of 1st- and 2nd-level slots larger than a wizard’s entire table. Many DMs apply the optional Xanathar’s exhaustion rule (one level of exhaustion per skipped long rest) or simply rule that created slots vanish on a long rest. Ask your table before you commit three levels to this.

Even without the infinite loop, the shell is strong. Two warlock levels give Eldritch Blast + Agonizing Blast (reliable ranged damage the sorcerer list lacks), two invocations, and short-rest slots that convert into Metamagic fuel every rest. Warlock 3 adds Pact of the Chain (a familiar that can deliver touch spells) or Pact of the Tome (extra cantrips and ritual casting the sorcerer desperately wants).

Ability priority: CHA → CON → DEX — Charisma drives both sorcerer and warlock spellcasting, Eldritch Blast damage (via Agonizing Blast), and save DCs. Constitution for concentration. No stat tax — both classes require Charisma.