Grumpy Cat, Eternal

Grumpy Cat, Eternal gets +1/+1 as long as there
is a +1/+1 counter on a creature you control.
If Grumpy Cat were to be destroyed, instead put
a -1/-1 counter on him.
If Grumpy Cat were to be exiled, pay {w}{b}
{r}, if you do, put him on the top of you library
instead.