Ulfric, Jarl of Windhelm

+2: Ulfric, Jarl of Windhelm does 2 damage to each opponent.
-1: Exile the top card of your library. If it's white, you may cast it this turn.
-X: Ulfric, Jarl of Windhelm deals X damage to a individual creature. If X damage's quantity is over 4, do not tap Ulfric, Jarl of Windhelm.