Larian Studios Forums Divinity: Original Sin 2 - The Modding Dungeon Divinity - Original Sin 2 - Modding General How to add new skill during character creation?

You shouldn't need to add it to the skillset. Any Starter-tier skill for which a character meets the prerequisites should be available in character creation. There is a known issue for how Starter-tier skills with prerequisites of more than 1 in their school appear in the character creation UI, though.