I'm game. I think more options wouldn't hurt, we have defense and AP boost, how about some sustain?
Essling Rod
+
+
+ 140g = 3200
120 AP
10% CDR
100% BMR
Unique Passive: Each time a spell is cast nearby, Essling Rod draws energy from it and returns it as mana.
Unique Active: Essling Rod is planted at target position (150 range), disabling the passive, but capturing passing spells. When the collected energy exceeds capacicity, or the Rod is destroyed, the energy is released dealing damage in the area.
I somehow came about the name by combining "essence" and "lightning rod"
The active needs some detailing. But you get the idea.
Voodoo Staff
+
+ 500g = 3300g
120AP
15% spellvamp
Unique Passive: Voodoo Staff will charge for 20% of any healing done (spells, lifesteal, spellvamp)
Unique Active - Voodoo Do : The charge is drained to heal target champion for the same amount. If the charge exceeds 50% base health of the tarrget, it can be cast on a corpse, reviving them with health equal to the remaining charge.
Too OP? Note that reviving drains charge without healing. Also the charge ratio is equal to using Spirit Visage. The revive ratio can be adjusted so that it isn't too available.