Vito Corleone, Godfather

At the beginning of your upkeep, scry 2.
Players may look at the top card of their library.
Whenever a player loses life for the first time each turn, that player reveals the top card of their library. If its a nonland card with converted mana cost less than or equal to the amount of life lost this way, that player may cast that card without paying its mana cost. If they can't that player sacrifices a creature and discards a card.