That means it’s possible for you to multiclass into anything: Barbarian/Rogue?
One level inall 12 Baldur’s Gate 3 classes?
There’s an achievement for that!

You only gain access to the abilities earned from each level in a respective class.
If you have five levels in Fighter, for example, you’ll get the Extra Attack feature.
That wraps up our guide on how to multiclass in Baldur’s Gate 3.

Of course, abilities and combat options are only one part of this sprawling CRPG.