Drain Power [Unlimited Edition] San Diego Comic-Con 2016 the dwarven forces had reduced

the dwarven forces had reduced the mighty walls to mere rubble

Set: Commander 2013 Type: Legendary Creature — Bird Wizard Mythic Cost: {G}{W}{U} Flying Whenever Derevi

Set: Asia Pacific Land Program Type: Basic Land — Swamp Common Cost: ({T}: Add {B}

After the destruction of Argoth

Set: Pro Tour Promos Type: Legendary Creature — Dragon Rarity: Rare Cost: {3}{G}{W}{U} Flying

Drain Power [Unlimited Edition] San Diego Comic-Con 2016 the dwarven forces had reducedSet: Unlimited Edition Type: Sorcery 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.