Armor of Absorption

This leather-based armor grants the wearer its usual base AC buff.

The edges of this armor are carved with runes and sigils, with interweaving knot patterns throughout. As a bonus action, the wearer may speak a command word, causing the designs to light up, sending out light as if the Light spell has been cast. 

If activated during combat, the armor has 6 charges. Whenever you take damage from a magical attack or magic weapon, you can spend 1 charge as a reaction to gain resistance to one of the damage types that damaged you. This resistance lasts for 1 hour or until another charge is expended to attune to a new type of damage. 

The armor automatically regains 1d4 charges at dawn. However, if all the charges have been expended, the armor must be recharged by soaking it in something damaging to the leather for the duration of a long rest, and will not regain charges until this ritual is complete. 

The breastplate and shoulder protectors of this armor are made of leather that has been stiffened by being boiled in oil. The rest of the armor is made of softer and more flexible materials.