Grumst, First Mate

{x}{x} Sacrifice X skeletons: Put X +1/+1 counters
on Grumst, First Mate.
If there are:
3+ counters on Grumst, he gets first strike.
6+ counters on Grumst, he gets double strike.
10+ counters on Grumst, he gets Indestructible.
As the First Mate, Grumst is responsible for the discipline of the ship. A truly vile creature,
He seems to feed on the misery of his own crew