Larian Studios Forums Divinity: Original Sin 2 - The Modding Dungeon Divinity - Original Sin 2 - Modding Stats StackId and scaling status effect

The StackId is used so one status can't stack with another, or even the status can't stack with itself. If you leave the entry blank, the status will stack with itself. If you use another status StackId, it won't stack with itself nor the other status you copied the StackId from.