Paraphax's Blessing

At level 4 you can share some of the dragons power with a willing creature giving them a fraction of Paraphax's power. The creature, if willing, gains +2 bonus AC until their turn. If they are hit by a damaging spell during the effect being active, as a reaction they can seek to cause a rebound of the spell hitting the original caster for half of the damage taken, for the effect to take place the character must roll a general intelligence check with a DC of 15 + the Spell Level. 

This feat can be used Once per short rest.