Essence Depleter

Essence Depleter
Oath of the Gatewatch - Uncommon
Creature — Eldrazi Drone
Chase Stone
Devoid (This card has no color.)
: Target opponent loses 1 life and you gain 1 life. ( represents colorless mana.)

Rulings

Buy as cheap as: $0.05 (Average: $0.05 High: $0.42)
Edit