Urza's Power Plant (Toppers) [Double Masters] Unicorn Whenever a nontoken creature enters

Whenever a nontoken creature enters the battlefield under your control

You may cast that card

Set: Kaladesh Inventions Type: Artifact Creature — Construct Rarity: Mythic Cost: {X}{X} Hangarback Walker enters the battlefield with X +1/+1 counters on it

Set: Beta Edition Type: Land — Forest Island Rarity: Rare ({T}: Add {G} or {U}

Urza's Power Plant (Toppers) [Double Masters] Unicorn Whenever a nontoken creature entersSet: Double Masters Type: Land Urza's Power Plant Rarity: Rare {T}: Add {C}. If you control an Urza's Mine and an Urza's Tower, add {C}{C} instead. Urza threw himself into his research, pushing the boundaries of both possibility and morality.