This guide explores powerful multiclass character builds in Baldur's Gate 3, leveraging the game's D&D 5e ruleset. Larian Studios' upcoming addition of 12 subclasses will further expand build possibilities, but these strategies offer compelling options for players before the update. These builds combine classes for synergistic abilities and enhanced combat effectiveness.
1. Lockadin Staple (Ancients Paladin 7, Fiend Warlock 5): This build combines the Paladin's offensive capabilities (Divine Smite, Extra Attack) and defensive prowess (Heavy Armor Proficiency) with the Warlock's utility spells and short-rest spell slots. This maximizes damage output and survivability.

(Table detailing level-by-level class choices and features included in original text)
2. God of Thunder (Storm Sorcerer 10, Tempest Cleric 2): This elemental-themed build merges the Storm Sorcerer's raw power with the Tempest Cleric's combat proficiencies and Wrath of the Storm reaction for additional lightning/thunder damage.

(Table detailing level-by-level class choices and features included in original text)
3. Zombie Lord (Spore Druid 6, Necromancy Wizard 6): A summoner build focusing on undead control. The Spore Druid provides additional zombie summons, complementing the Necromancy Wizard's summoning abilities.

(Table detailing level-by-level class choices and features included in original text)
4. Dark Sentinel (Oathbreaker Paladin 5, Fiend Warlock 5, Fighter 2): A thematically dark build, ideal for roleplaying a morally ambiguous character. It combines the Oathbreaker's abilities with the Warlock's pact and the Fighter's combat versatility.

(Table detailing level-by-level class choices and features included in original text)
5. Traditional Sorcadin (Vengeance Paladin 6, Storm Sorcerer 6): A balanced build utilizing the synergy between Paladin and Sorcerer, emphasizing both spellcasting and melee combat. The Paladin provides frontline defense, while the Sorcerer offers additional offensive and utility spells.

(Table detailing level-by-level class choices and features included in original text)
6. Champion Archer (Champion Fighter 3, Hunter Ranger 9): A ranged damage dealer build focusing on critical hits and powerful ranged attacks. The Fighter provides improved critical hits and Action Surge, while the Ranger enhances ranged combat and provides utility spells.

(Table detailing level-by-level class choices and features included in original text)
7. Frenzy Rogue (Berserker Barbarian 5, Assassin Rogue 7): A high-damage build focusing on maximizing attacks per turn. The Barbarian provides rage and Reckless Attack, while the Assassin Rogue adds Sneak Attack and Assassinate for devastating blows.

(Table detailing level-by-level class choices and features included in original text)
8. Eldritch Nuke (Fighter 2, Evocation Wizard 10): A spellcaster build that combines the Wizard's high damage spells with the Fighter's defensive capabilities and Action Surge.

(Table detailing level-by-level class choices and features included in original text)
9. Coffeelock Staple (Fiend Warlock 2, Storm Sorcerer 10): A spell-slinging build that combines the Warlock's Eldritch Blast with the Sorcerer's spell slots and Sorcery Points for sustained damage.

(Table detailing level-by-level class choices and features included in original text)
10. Stalker Assassin (Rogue 5, Ranger 7): A stealth-focused build that uses Sneak Attack and the Gloom Stalker's abilities to deal massive damage from ambush.

(Table detailing level-by-level class choices and features included in original text)
11. Silent Death Monk (Thief Rogue 3, Open Hand Monk 9): A high-attack build that utilizes multiple attacks per turn to overwhelm enemies.

(Table detailing level-by-level class choices and features included in original text)
12. Death By Surprise (Gloom Stalker Ranger 5, Assassin Rogue 4, Champion Fighter 3): A build designed to eliminate enemies before they can react, combining ambush tactics with high damage output.

(Table detailing level-by-level class choices and features included in original text)
These builds provide a starting point for creating unique and effective characters in Baldur's Gate 3. Remember to adjust them based on your preferred playstyle and the challenges you face.