Visions

Pygmy Hippo

If Pygmy Hippo attacks and is not blocked, you may choose to have it deal no combat damage this turn. If you do, defending player draws all mana from his or her lands and then his or her mana pool is emptied. After combat, add an equal amount of colorless mana to your mana pool.

Whenever Pygmy Hippo attacks and isn't blocked, you may have defending player activate a mana ability of each land they control and lose all unspent mana. If you do, Pygmy Hippo assigns no combat damage this turn and at the beginning of your next main phase this turn, you add an amount of {C} equal to the amount of mana that player lost this way.