Berserk.
If a player or monster that is a Berserker chooses to or says I go Berserk they enter the Berserk stage at the cost of a bonus action similar to rage.
They gain plus 2 to their armor class as their movements become faster and crazier allowing them to dodge damage more often.
Though the enemy or enemies will gain advantage on attack roles every other turn for example on turn 1,3,5,7 and so advantage but on even numbers no advantage.
They also gain 5 movement to use as they wish
