Gryssdern Beserker

Gryssdern Beserker enters the battlefield with
X beserk counters on it.
When Gryssdern Beserker attacks, it gets +2/-1
for each beserk counter on it until end of turn.
{2}{g}: Gryssdern Beserker gets +0/+1 until end
of turn.
It's actually quite civilized... until it gets upset.