Creature — Eldrazi Drone

Kozilek's Sentinel

Kozilek's Sentinel trading card
Creature — Eldrazi Drone1 exact printing

Devoid (This card has no color.) Whenever you cast a colorless spell, this creature gets +1/+0 until end of turn.

From Magic: The Gathering.

Exact printings

Open the interactive version on https://mythscribe.cloud/app/tcg/cards/cms6oejk2abuppb1h6f5eqy6e.