Blood Eye Squig

Haste
Whenever a creature an opponent controls dies,
put a +1/+1 counter on Blood Eye Squig.
{2},{t},Sacrifice another creature: put a +1/+1
counter on Blood Eye Squig.
As long as Blood Eye Squig has three or more
+1/+1 counters on it, it has trample, menace and
it's a Boss, in addition to its other types.