Sabretooth

Riot (You may have Sabretooth enter the battlefield
with an additional +1/+1 counter on it. If you don’t,
it gains haste.)
Sabretooth has menace as long as it has two or
more +1/+1 counters on it.
{r}{r}: Sabretooth fights target creature you
don't control. When that creature dies, put
a +1/+1 counter on Sabretooth.