Relentless Rats [Magic 2011] Human Designer add an amount of {C}

add an amount of {C} equal to that spell's mana value

Set: Welcome to Rathe Edition: Alpha Print Finish: Rainbow Foil Type: Action Subtype: Attack Rarity: Rare Class: Ninja Cost: 1 Power: 4 Combo - If Rising Knee Thrust was the last attack this combat chain

Set: Summer Magic / Edgar Type: Artifact Rarity: Uncommon Cost: {1} As The Rack enters the battlefield

Set: Amonkhet Type: Creature — Serpent Rarity: Uncommon Cost: {5}{U}{U} This spell costs {1} less to cast for each instant and sorcery card in your graveyard

Set: International Collectors' Edition Type: Enchantment Rarity: Rare Cost: {2}{R} Whenever a player taps a land for mana

Relentless Rats [Magic 2011] Human Designer add an amount of {C}Set: 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.