Urza's Power Plant (Toppers) [Double Masters] BW23 You can only use each

You can only use each effect of "Ursarctic Polari" once per turn

Set: POP Series 1 Type: Fire Rarity: Rare Retreat cost: Colorless

its controller takes damage equal to its original ATK

This card cannot be Special Summoned except by the effect of "Horus the Black Dragon LV6"

Set: Soul of the Duelist Card type: Effect Monster Rarity: Ultimate Rare Attack: 900 Defense: 0 If this card attacks a face-down Defense Position monster

Urza's Power Plant (Toppers) [Double Masters] BW23 You can only use eachSet: 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.