Corwinnn, Vastwood Seer

When Corwinnn, Vastwood Seer enters the battlefield, you may search your library for a basic forest card, reveal it, put it into your hand, and shuffle your library.
Landfall--Whenever a land enters the battlefield under your control, create a 1/1 green Squirrel creature token. Then, if you control seven or more squirrels, transform Corwinnn, Vastwood Seer.