Trap: Reflexive Armor

Reflexive Armor may be used as a bonus action or a action. When you play this trap you enchant a Creature and decide what type of damage triggers it. This trap is triggered when your chosen damage type is dealt to your target dealing at least four fifths of the creatures Hit points. Upon activation the aggressor takes equivalent damage of the opposite type and is thrown back 4d6 feet.

At higher levels the damage requirement to activate decreases by one fifth per spell level stopping at one quarter.