Relentless Rats [Magic 2011] SWSH173 That monster loses 500 ATK

That monster loses 500 ATK while equipped with this card

Set: Guilds of Ravnica Type: Instant Rarity: Rare Cost: {U}{U} Surveil 2

Set: Betrayers of Kamigawa Type: Legendary Creature — Spirit Rarity: Rare Cost: {4}{R}{R} Goblin offering (You may cast this card any time you could cast an instant by sacrificing a Goblin and paying the difference in mana costs between this and the sacrificed Goblin

Counters can't be put on artifacts

Set: Kaladesh Type: Legendary Planeswalker — Dovin Rarity: Mythic Cost: {2}{W}{U} +1: Until your next turn

Relentless Rats [Magic 2011] SWSH173 That monster loses 500 ATKSet: Magic 2011 Type: Creature Rat Rarity: Uncommon Cost: {1}{B}{B} Relentless Rats gets +1 +1 for each other creature on the battlefield named Relentless Rats. A deck can have any number of cards named Relentless Rats.