Pride of Ghirapur

Sacrifice Pride of Ghirapur: Search your library for up to X cards with converted mana cost X or less and exile them where X is Pride of Ghirapurs power. You may cast the exiled cards without paying their mana cost. Activate this ability only if this card is a creature.
Whenever a player casts a spell with converted mana cost greater than this creatures power, Pride of Ghirapur becomes a creature, then put a +1/+1 counter on this creature.