Victory
From DominionStrategy Wiki
Victory cards have a green border and say "Victory" on the bottom. If they have no other type, they cannot be played, and have no effect until the end of the game, at which point they are worth Victory Points; the player with the highest Victory Point total wins the game. Some Victory cards have an additional type, such as Action, Reaction, or Treasure; these cards can be played just like Action, Reaction, or Treasure cards, respectively.