Armor of resilience

sets ac to 16 then add your Dex modifier
once a day:on an otherwise fatal attack, the armor absorbs any attack, if melee, the user is left with 1d4+1 hp if ranged, the armor reflects the attack back at the user they take half the damage they deal and the user of the armor is left with 1 hp 

This crude armor consists of thick furs and pelts.