Armor of the berserker

When you drop below a fourth of your max hp you enter a berserker like rage. You cannot drop below one  hp for two rounds. When hit, you can use your reaction to make an unarmed strike to the nearest person within five feet of you dealing your str modifier plus four. This goes away after two minutes or you are no longer below a fourth of your max hp. This armor has two charges that replenish at every dawn. 

Spiked armor is a rare type of medium armor made by dwarves. It consists of a leather coat and leggings covered with spikes that are usually made of metal.

Notes: Stealth Disadvantage