The Wizard is a tricky choice to multiclass in Baldur's Gate 3, and there are only a few classes that combo with it well. This is because it's the only class in the game that uses Intelligence as its primary Ability Score, leading to a lack of synergy with other spellcasters. However, there are a few great Wizard multiclass builds in Baldur's Gate 3 that rely on one or two low-level dips into other classes to enhance their abilities.