Larian Studios Forums Divinity: Original Sin 2 - The Modding Dungeon Divinity - Original Sin 2 - Modding General Percentage based damage?

There is a CharacterSetHitpointsPercentage call. CharacterSetHitpointsPercentage(badGuy,50); halves badGuy's HP e.g. So if you could incorporate that into the spell somehow, I've not tried anything like that so I'm not sure how.