Obik, Grave Walker

Undergrowth - When Obik, Grave
Walker enters the battlefield put X -1/-1
counters on target creature where X is the
number of creatures in your graveyard.
{g}{g}{g}: Put a +1/+1 counter on up to 3 target
creatures.
When Obik leaves the battlefield, create 6 1/2
black and green cat spirit tokens.