The Countdown Is at One
Sorcery
Players play a Magic subgame, starting at 1 life and using their libraries as their decks. For the rest of the main game, if a source would deal damage to a player who didn't win the subgame, it deals double that damage to that player instead.
Printings & Conditions (2)
The List (Unfinity Foil Edition) (ULST)(The List)#28Rare
Unstable (UST)(Unstable)#80Rare