Tardin, Sharp Symphonist

When Tardin, Sharp Symphonist enters the battlefield, create up to three piles, placing up
to two cards in each pile. At the beginning
of the next X turns, select a pile. For the rest of
that turn, you may only play cards from the
chosen pile. Spells cast for the next X turns
cost no mana, where X is the number of
piles created with Tardin Sharp Symphonist.