So i was trying to work over the gear set I have for my Artificer, using the new Dino sets. You can have a Ring/Neck combo as part of the 5 piece for the Dread Island Curse set that gives 149 and an insightful 74. The spell powers from an option of 3 different ring/neck sets cover the following Spell Power, Acid, Cold, Electric, Fire, Force, Positive, Negative, Poison, Light, Alignment, Sonic, Untyped, Slashing, Piercing, Bludgeoning.
This covers Everything except Repair and Rust spell powers. Not sure that rust spell power is used all that much, but repair spell power seems to have been overlooked?