Anio's Dragon Shield

Anio summons two dragons to orbit around you (8 feet long each), each having 100 hit points (200 total). You must roll a d12. If you get a 6 or higher, they hit a dragon. If you don't, they hit you. Either one can be targeted specifically. When one is defeated, it explodes, dealing 2d6 to each you and the opponent who defeated the dragon (The damage is not split, you roll a 2d6 for you and a 2d6 is rolled for the opponent).

At higher levels: At level 20, the dragons double in size, giving the opponent an 100% chance to hit a dragon, and each dragon now has 180 hit points each.