Squirrel Girl, The Unbeatable

Forestwalk (This creature can’t be blocked as long
as defending player controls a Forest.)

If one or more tokens would be created under your
control, those tokens plus that many 1/1 green Squirrel creature tokens are created instead.

{b}, Sacrifice X Squirrels: Target creature gets
+X/-X until end of turn.

"Fear the squirrels!"