I have had the good fortune to have acquired two Sympathetic Augs:
Darkened Gem of the Leviathan with Sympathetic Alleviation VII (chance to recover 250 mana when casting a detrimental spell)
and
Red Gold Sphere with Sympathetic Fire VI (chance to cast a 200 fire nuke)
what i don't know is if these co-exist well, and if there is any mod that increases the chance to fire that?