name: Drain Power
originalText: Opponent must draw all mana from his or her available lands; this mana and all mana in opponent's mana pool drains into your mana pool. You can't take less than all your opponent's mana.
printings: 2ED, 30A, 3ED, 4BB, 4ED, 5ED, CED, CEI, FBB, LEA, LEB, ME4, SUM
text: 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.
type: Sorcery