Krosa's Spirit

Trample, Protection from Green;
The strength and constitution of the Spirit of the Forest is equal to *, where * is the total number of Forest lands in play.
When the Spirit of the Forest comes into play, search your library, select 3 Forest land card, and put them into play tapped, then shuffle the deck.
{ut}: Sacrifice three Forest Lands
"He is the forest and the forest is him"