Gnarbrok, Vengeful Elder

Flying, Vigilance, Trample
When Gnarbrok enters the battlefield or is blocked, Stomp 4 (Target opponent may choose
to let you put a -1/-1 counter on up to 4 target creatures they control. If they decline, put half
that many +1/+1 counters on this creature.)
"You should have let us sleep." -Titheas, Retrospective Elder