Call the Gatewatch

Devoid (This card has no color.) Reality Hemorrhage deals 2 damage to any target.

T: Add C.

Vigilance

Create two 2/2 white Knight Ally creature tokens.

(C represents colorless mana.) At the beginning of combat on your turn, reveal the top card of your library. If a creature card is revealed this way, you may have creatures you control other than this creature become copies of that card until end of turn. You may put that card on the bottom of your library.

Whenever another colorless creature you control enters, you may change this creature's base power and toughness to that creature's power and toughness until end of turn.

Untap this creature during each other player's untap step. T: This creature deals 1 damage to any target. C, T: Target creature can't attack or block this turn. CC, T: Draw a card.

When you cast this spell, if you have fewer than seven cards in hand, draw cards equal to the difference. Menace Discard a card with mana value X: Counter target spell with mana value X.