Chattering Heights

Chattering Heights enters the battlefield tapped
unless one or more Squirrels entered the battlefield under your control this turn.
{t}: Add {g}. If that mana is spent on a Squirrel
spell, look at the top three cards of your library.
You may reveal a Squirrel card from among them
and put it into your hand. Then put the rest on
the bottom of your library in any order.