Halls of Futility

Bands with all other 'Futility' spells.
All 'Futility' creatures get -0/-X where X is that creature's toughness.
Until the end of your turn, you gain control of
your turn until the end of your turn.
{t}, Sacrifice Halls of Futility: Draw a card, then
exile that card and your hand. Your maximum
hand side is zero for the rest of the game.