Deathstroke

At the beginning of the game, secretly choose a
non-Earth player at random. When you directly
cause that player to lose the game, you win the
game and no others players can win this turn. If another player causes that player to lose, you lose.
You may flip this card face up any time as long
as you have 20 or less life.
Untap this card at the beginning of each upkeep.
{2}{t} Destroy target tapped creature.
{3}{t} Scry 2, then draw 2 cards.