WeedRat

Whenever a Forest enters the battlefield, you gain 1 life,
and may place a Weed counter on WeedRat
Whenever a Weed counter is placed on a WeedRat, you
may choose 1 of the following:
•{t}: Place a -1/-1 counter on target creature
•{g}{t}: Return target creature to it's owner's hand
"They always call me WeedRat, but never Why'dRat"
- WeedRat