The Great Squirrel Nest

{t}, Exile a Squirrel and put a Hibernation
Counter on it: Add one manna of any color to
your manna pool that shares a color with the
exiled Squirrel.
{w/b}{u/r}{g}, sacrifice The Great Squirrel Nest: Search
your library and graveyard for a card named "Hibernation Grounds" and put it onto the battlefield tapped, then shuffle your library.