Trigger Warning

Whenever a non-white source would deal damage for the first time each turn, choose one —
• If that source is a spell on the stack, exile it with one time counter on it. It gains suspend.
• If that source is a creature, you may return it to its owner's hand.
• You may fateseal 1 each other player. (You look at the top card of each player's library. You may then put that card on the bottom of that library.)