I done some tests on the body myself, basically Nuke in the Arts > Libra > Nuke in the arts > Libra > nuke outside the arts > Libra > Nuke in the arts without body > Libra rinse and repeat. Your enmity gain is really slow when you use them in the corresponding Arts.
(you can do the tests yourself, it really doesn't give much hate at all) But the body really should be a 2mp/tic refresh (BLU even gets 2mp/tic on the +2 body and its a melee mage D
On the note of Enhancing would be neat to be able to transfer TP gained into HP/MP or give something beneficial to another target of your choice at the cost of the TP.