Urza's Tower (Plains) [Antiquities] Basic Lightning Energy untap all attacking creatures

untap all attacking creatures

which prevents all other effects of that attack on Misty's Tentacruel

Rarity: M #: 221 Card Type: Legendary Artifact Description: If you would gain life

choose 1 of them and put it on his or her Bench

you must remove from play 1 Rock-Type monster from

Urza's Tower (Plains) [Antiquities] Basic Lightning Energy untap all attacking creaturesRarity: C Card Type: Land Description: Tap to add 1 colorless mana to your mana pool. If you have Urzas Mine, Urzas Tower, and Urzas Power Plant in play at the same time, tap to add 3 colorless mana to your mana pool. Flavor: Urza always put Tocasias lessons on resource gathering to effective use.