Berserk Mode

This spell can’t be countered. Your opponents can’t gain life this turn. Damage can’t be prevented this turn. Whenever a creature an opponent controls dies this turn, you gain 1 life.

Target creature gets +10/+0 and gaines first strike, trample and indestructible until end of turn. Then that creature deals damage equal to half of its power rounded up to each creature and each planeswalker.

At the beginning of your end step, put two stun counters on that creature. Exile Berserk Mode.