How much chaos is too much?

So I wanted to ask some other people who either have a chaos deck or have played against them, how much is too much?

I want to build a [[Ian Malcolm, Chaotician]] deck with the idea of it being a chaos deck but I don't want it to be so chaotic that it takes 30 minutes to resolve the stack. I feel cards like [[Grip of Chaos]] is too hard to resolve accurately in a paper format when someone plays something that can target a permanent. That being said what cards do you like to see that make a chaos deck,.. chaotic without it feeling like its just dragging the game on forever. Stuff like [[Possibility Storm]] or [[Coveted Jewel]] come to mind. What are yours?