Aragorn and Borimir

Reveal Aragorn and Borimir only if a creature you control has died this turn.
Tower Guard: When you reveal Aragorn and Borimir, create 4 3/3 white soldier tokens.
Return of the King: At the beginning of each combat, your creatures gain Vigilance, Indestructible or Doublestrike.
If Sauron and the Witchking have been defeated, you win the game.