Ship of the Skyprow

Flying, Crew 3
Whenever Ship of the Skyprow takes damage, put a -1/-1 counter on it.
Each creature you control has "{t}: Remove a -1/-1 counter from Ship of the Skyprow."
Whenever Ship of the Skyprow attacks, you gain 3 life and other creatures you control gain first strike and vigilance until end of turn.
It is the Skyprow's most treasured possession.