Momir Vig's Laboratories

{t}: Put an creation counter on Momir Vig's Laboratories.
{t}, Remove X creation counters from Momir
Vig's Laboratories: Search your library for a creature card with converted mana cost X and
put it onto the battlefield. Then shuffle your library and exile Momir Vig's Laboratories.
"If nobody wants to be my test subject, I'll breed my own one!"