Casting it early could give your opponents a full hand of new cards to play, or throw a wrench into whatever play they were planning
You also never know when youre going to need to stop someone from doing something that will win the game on the spot, so reactive answers have to be ready at all times
[4] The exact result of a copy effect is a common source of confusion
Naar Isle Plane: Wildfire At the beginning of your upkeep, put a flame counter on Naar Isle, then Naar Isle deals damage to you equal to the number of flame counters on it
Creating a sacrifice engine to go long with Miaras ability can take the form that suits you
Thats a real shame given how many cool control cards there are here, like the incredibly potent new Teferi, Who Slows the Sunset, who is sure to be a control favourite in any format theyre legal in