When you cast this spell, reveal the top X cards of your library. You may put a nonland permanent card with mana value X or less from among them onto the battlefield. Then shuffle the rest into your library. Genesis Hydra enters the battlefield with X +1/+1 counters on it.
![Genesis Hydra [Resale Promos]](http://www.cardmerchanttakapuna.co.nz/cdn/shop/files/2e54bba8-6b2f-5fdd-8e13-309d1764c22d.jpg?v=1730511264&width=1445)