Portable Hole

{x}{t} add X {c}, this mana does not empty from
your mana pool as steps and phases end.
{c}{c}{t} Return any permanents Exiled with this
card to the battlefield. Exile target permanent for
as long as Portable Hole is on the battlefield.
If Portable Hole targets or is targeted by a card
named Bag of Holding, Exile all permanents and
all players life totals become 1.