Kozilek's Sentinel | 129 | Battle for Zendikar

Set: Battle for Zendikar
Rarity: C
#: 129
Creature Type or Sub Type: Creature — Eldrazi Drone
P: 1
T: 4
Rules Text Contains: Devoid (This card has no color.)
Whenever you cast a colorless spell, Kozilek's Sentinel gets +1/+0 until end of turn.
Flavor: It moves through the tunnels as slowly and surely as the shifting stones.