Sc0010072, Prototype II

{c}, {t}: Put a +1/+1 counter on Sc001072,
Prototype II.
{p/c}{p/b}, {t}: Search you library for a permanent with converted mana cost X, where X is Sc001072, Prototype II's power. Reveal it. You may then pay {x}. If you do, put it onto the battlefield.
Otherwise, put into your hand.
{p/c}{p/b}, {t}: Destroy target creature with converted
mana cost X or less, where X is Sc001072,
Prototype II's power.