Larian Studios Forums Divinity: Original Sin 2 - The Modding Dungeon Divinity - Original Sin 2 - Modding General How to make AI use custom spell

The custom summon spell didn't have the AIflag "CanNotUse", and correctly add to character with AI tag "AIHint_Summoner".No skill level or any requirement.Even the AP cost already set to 0, NPC still didn't use it. How to make them use the spell?