Subterranean Sneakway

Whenever a Viashino enters the battlefield under
your control, place a sand counter on
Subterranean Sneakway.
{t}: Put a creature with converted mana cost
equal to the amount of sand counters on Subterranean Sneakway from your hand into play.
{2}, Remove a sand counter from Subterranean Sneakway: Draw a card.