Larian Studios Forums Divinity: Original Sin 2 - The Modding Dungeon Divinity - Original Sin 2 - Modding Scripting Let's finally find place where hidden original talents and his options

The talent effects are in fact hardcoded in the game engine. There is no way to modify them through data. The only thing you can do react in script when a talent gets added and apply additional modifications (like changing attribute points, or adding a skill). It is not possible to prevent a talent's effects from being applied at all though.

You can find the list of talents at https://docs.larian.game/Talent_list, and the event to react to a talent being added to a character at https://docs.larian.game/Osiris/API/CharacterUnlockedTalent .