Oni of Revenge

Ward—Exile the top card of your library face down and put a secret counter on that card.
If Oni of Revenge would be put into a graveyard from anywhere, exile it instead.
You may look at cards in exile your opponents own with secret counters on them, you may play lands and cast spells from among those cards, and you may spend mana as though it were mana of any color to cast those spells.
# Transforms from Vengeful Ronin.