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 with X +1/+1 counters on it.
Kalonian Twingrove's power and toughness are each equal to the number of Forests you control. When Kalonian Twingrove enters, create a green Treefolk Warrior creature token with "This creature's power and toughness are each equal to the number of Forests you control."
[+1]: Target land you control becomes a 4/4 Elemental creature with trample. It's still a land. [+1]: Untap up to four target Forests. [–7]: Search your library for any number of basic land cards, put them onto the battlefield, then shuffle. Those lands become 4/4 Elemental creatures with trample. They're still lands.
The magic of the elves leaves its mark on the forest. The magic of the forest leaves its mark on the animals who live there. The animals of the forest leave their mark on all who trespass.
When Satyr Wayfinder enters, reveal the top four cards of your library. You may put a land card from among them into your hand. Put the rest into your graveyard.
The first satyr to wake after a revel must search for the site of the next one.