Buneary

Whenever a creature attacks you or a
planeswalker you control, return Buneary to your
hand if you do not control any other creatures.
Protection from Spirits, haste.
{t}: Target creature gets -1/-0 until end of turn.
{x}, {t}: Sacrifice Buneary, return target creature
card with mana value X or less from your
graveyard to the battlefield with an additional
+1/+1 counter on it.