Drain Power [30th Anniversary Edition] Gorgon Set: Ravnica: City of Guilds

Set: Ravnica: City of Guilds Type: Artifact Rarity: Rare Cost: {3} Whenever a nonartifact permanent enters the battlefield under your control

Set: Mystery Booster Type: Artifact Rarity: Mythic Cost: {5} If you would lose the game

except it's an enchantment in addition to its other types

or the creature's toughness

Set: Champs and States Type: Legendary Creature — Treefolk Shaman Rarity: Rare Cost: {W}{B}{G} Each creature assigns combat damage equal to its toughness rather than its power

Drain Power [30th Anniversary Edition] Gorgon Set: Ravnica: City of GuildsSet: 30th Anniversary Edition Type: Sorcery Rarity: Rare Cost: {U}{U} Target player activates a mana ability of each land they control. Then that player loses all unspent mana and you add the mana lost this way.