

Baldur’s Gate 3 has been out for three years, but its multiclass system is still one of the deepest build spaces in any RPG on Steam. Mixing two or three of the game’s twelve classes lets you stack together features that were never designed to interact, and the result is some of the strongest builds in the game. Here’s a full S-to-B breakdown of what’s working best right now, and why.
S-Tier: Builds That Carry the Party
Storm Sorcerer / Paladin (6/6) — Six levels of Storm Sorcery gives you Tempestuous Magic, which grants 10 feet of free Fly whenever you cast a spell, while six levels of any Paladin oath layer Divine Smite onto your weapon attacks. The combo lets you nova a target with smites, then blink out of melee range on your bonus action every single turn.
Frenzy Barbarian / Thief Rogue (8/4) — Eight levels of Frenzy Barbarian keeps Rage uptime effectively permanent and pushes extra attack damage, while four levels of Thief Rogue hands you a second bonus action to use on potions, scrolls, or a shove. It’s blunt, but it hits like a truck round after round.
Gloom Stalker Ranger / Assassin Rogue (8/4) — This is the game’s premier alpha-strike build. Gloom Stalker’s Dread Ambusher adds bonus damage and an extra attack on the first turn of combat, and if that first attack lands during a surprise round, Assassinate from the Assassin subclass turns it into an automatic critical hit.
Fiend Warlock / Battle Master Fighter (6/6) — Six levels of Fiend Warlock bring Agonizing Blast-boosted Eldritch Blast plus short-rest-recharging spell slots for Hex and smite-adjacent spells, and six levels of Battle Master add maneuvers like Trip Attack and Riposte for consistent extra damage on top.
Draconic Sorcerer / Fiend Warlock (10/2) — Ten Sorcerer levels buy a huge sorcery point pool for Quickened Spell and Twinned Spell, while two levels of Fiend Warlock bolt on Agonizing Blast and Devil’s Sight, turning Eldritch Blast into a free, repeatable damage source alongside your leveled spells.
Frenzy Barbarian / Thief Rogue (8/4) — Eight levels of Frenzy Barbarian keeps Rage uptime effectively permanent and pushes extra attack damage, while four levels of Thief Rogue hands you a second bonus action to use on potions, scrolls, or a shove. It’s blunt, but it hits like a truck round after round.
Gloom Stalker Ranger / Assassin Rogue (8/4) — This is the game’s premier alpha-strike build. Gloom Stalker’s Dread Ambusher adds bonus damage and an extra attack on the first turn of combat, and if that first attack lands during a surprise round, Assassinate from the Assassin subclass turns it into an automatic critical hit.
Fiend Warlock / Battle Master Fighter (6/6) — Six levels of Fiend Warlock bring Agonizing Blast-boosted Eldritch Blast plus short-rest-recharging spell slots for Hex and smite-adjacent spells, and six levels of Battle Master add maneuvers like Trip Attack and Riposte for consistent extra damage on top.
Draconic Sorcerer / Fiend Warlock (10/2) — Ten Sorcerer levels buy a huge sorcery point pool for Quickened Spell and Twinned Spell, while two levels of Fiend Warlock bolt on Agonizing Blast and Devil’s Sight, turning Eldritch Blast into a free, repeatable damage source alongside your leveled spells.

A-Tier: Strong, But More Specialized
Storm Sorcerer / Tempest Cleric (6/6) trades some burst for consistent elemental damage and the ability to fish for free lightning procs. Tempest Cleric / Evocation Wizard (10/2) leans fully into area spells, using Evocation’s Sculpt Spells to avoid frying your own party. Vengeance Paladin / Fiend Warlock (6/6) is a single-target nightmare, chaining Hunter’s Mark-style smites with warlock burst. Sword Bard / Vengeance Paladin (10/2) uses Flourish of Blades for extra weapon attacks that each get to carry a smite. Lore Bard / Thief Rogue (8/4) is more of a support-and-utility build, but Cutting Words and bonus-action item use make it a strong all-rounder in a four-person party.

B-Tier: Needs a Plan
Battle Master Fighter / Wildheart Barbarian (8/4), Sword Bard / Battlemaster Fighter / Assassin Rogue (6/3/3), Open Hand Monk / Berserker Barbarian (8/4), Oathbreaker Paladin / Fighter (10/2), and Battlemaster Fighter / Abjuration Wizard (6/6) all have real strengths, but they ask more of the player. These builds tend to need specific gear, a particular turn order, or a party composition that covers their weak points, and they can struggle in fights that don’t play to those strengths.
None of these tiers mean a build is unplayable outside of them — Baldur’s Gate 3’s difficulty curve is forgiving enough that a well-played single-class Fighter can finish the game just fine. But if you’re planning a run around maximizing damage and action economy, the S-tier combos above are the ones to build toward.
None of these tiers mean a build is unplayable outside of them — Baldur’s Gate 3’s difficulty curve is forgiving enough that a well-played single-class Fighter can finish the game just fine. But if you’re planning a run around maximizing damage and action economy, the S-tier combos above are the ones to build toward.

Leveling Order Matters
Most of these builds front-load their primary class to unlock its subclass features before multiclassing in, since Baldur’s Gate 3 locks subclass selection to specific levels (usually level 1, 2, or 3 depending on the class). Rushing a dip too early can leave you without the subclass bonus that made the combo worth building in the first place, so check each class’s subclass level before planning your exact order. For the full rules these builds are built on, Wizards of the Coast’s own D&D Beyond is a solid reference for how each class and subclass is meant to function at the tabletop level that Baldur’s Gate 3 adapts from.
Building any of these from scratch means a fresh campaign, and Steam gift cards or a browse through our RPG gift card picks are an easy way to fund a new save file.
Building any of these from scratch means a fresh campaign, and Steam gift cards or a browse through our RPG gift card picks are an easy way to fund a new save file.