You can get empower on a shield?
Would mainly depend on the actual shield itself. Are you trying to chance/scour into a unique (Rise of the Phoenix, Prism Guardian) or a generic rare shield w/ fire/minion damage, +1 fire, life, +2 max, +3 fire?
I think arrogance is pretty gg, especially if you're socket starved
The spell suppress node is pretty nice if you think you can hit cap with the extra 25 you get from shield