Myr Battlesphere [Duel Decks: Elves vs. Inventors]Set: Duel Decks: Elves vs. Inventors Type: Artifact Creature Myr Construct Rarity: Rare Cost: {7} When Myr Battlesphere enters the battlefield, create four 1 1 colorless Myr artifact creature tokens. Whenever Myr Battlesphere attacks, you may tap X untapped Myr you control. If you do, Myr Battlesphere gets +X +0 until end of turn and deals X damage to the player or planeswalker it's attacking.

Set: World Championships 2014 Type: Metal Rarity: Ultra Rare Retreat cost: Colorless

Set: Magic Player Rewards 2009 Type: Instant Rarity: Rare Cost: {1}{U} Counter target noncreature spell

the Multifarious

Set: Aquapolis Type: Lightning Rarity: Rare Retreat cost: Colorless

sacrifice all lands you control

Set: Gym Challenge Unlimited Type: Colorless Rarity: Common Retreat cost: Colorless

They use the currents to steal—and to steal away

That creature doesn't untap during its controller's untap step for as long as Neko-Te remains on the battlefield

Its flight sets the sky itself on fire

Activate only during your upkeep and only once each turn

Set: EX: Power Keepers Type: Psychic Rarity: Holo Rare Retreat cost: Colorless

Set: Black & White: Legendary Treasures Type: Darkness Rarity: Uncommon Retreat cost: Colorless