Liberator, Urza's Battlethopter (Promo Pack) [The Brothers' War Promos] Transformers Tokens (At the beginning of your

(At the beginning of your upkeep

Put the rest at the bottom of your library in any order

As long as you control a creature

When Niv-Mizzet Reborn enters the battlefield

Liberator, Urza's Battlethopter (Promo Pack) [The Brothers' War Promos] Transformers Tokens (At the beginning of yourSet: The Brothers' War Promos Type: Legendary Artifact Creature Legendary Artifact Creature Thopter Rarity: Rare Cost: {3} Flash Flying You may cast colorless spells and artifact spells as though they had flash. Whenever you cast a spell, if the amount of mana spent to cast that spell is greater than Liberator, Urza's Battlethopter's power, put a +1 +1 counter on Liberator.