The Maelstrom

Reveal a card from your hand: Put The
Maelstrom into play. Add one mana of a type
in the revealed card. Only activate this ability
during an opponent's turn.
Sacrifice The Maelstrom, choose a color: Until
end of turn, the next spell you cast of the chosen
color costs {1} less.
Once per turn, you may play The Maelstrom
from your graveyard.