Or Have a bag full of scraps that represent each ability and have your opponent grab one at random each turn
Impulse lets you look at the top four cards and choose one to keep plus its an instant
Sure, you could already do that with Hangarback Walker, but this is a creature that youve already gotten some use out of, and it just hangs out and threatens to flip Liliana at any time, so you can cash it in to flip right away, or you can save it and just play a normal game with Liliana, but your opponent cant use a removal spell on Liliana because youll just flip it in response
Warrior is a well-supported type in Commander, so there are possibilities for the card there, but this isnt coming anywhere near Standard unless something massive changes soon
Counters are probably one of Silverquills strongest mechanics, and Felisa leads the charge here very well