Armor of Conviction

The object of your worship has decided to reward you for you loyalty and great deeds. The first time you cast this spell choose an armor type, and one of the 1st level smite spells (or Ensnaring strike if you have chosen path of the ancients) from the paladin spell list, this spell creates a +2 magical armor item of the type you chose that you may dismiss to your deity's realm as a bonus action with the following ability: When you receive damage by a creature within five feet of you you may have the Armor of Conviction perform the chosen spell as a reaction. This ability may only be used once per round and does not count against the wearer's own reaction.