Mesmeric Orb [Mirrodin] Goblin Assassin if an opponent's monster battles:

if an opponent's monster battles: You can make its ATK become equal to its original ATK until the end of the Damage Step

Set: OTS Tournament Pack 10 Card type: Field Spell Rarity: Super Rare If a Level 10 EARTH Machine-Type monster(s) is Normal or Special Summoned to your field (except during the Damage Step): You can activate this effect

change its ATK to 3000

except "The Great Emperor Penguin"

then Special Summon 1 "Meklord" monster from your Deck or Graveyard

Mesmeric Orb [Mirrodin] Goblin Assassin if an opponent's monster battles:Set: Mirrodin Type: Artifact Rarity: Rare Cost: {2} Whenever a permanent becomes untapped, that permanent's controller mills a card. A step in one direction is two steps away from another.