Quote Originally Posted by TrollsWarrior_4733092 View Post
Spirits have NO effect on mages. Do not invest in a spirit for Shayd or Brynn. Yes for Cianna or Thucydides, also good for Calvin who makes a good banish sub. Weapons upgrades for all are good ideas. Accuracy runes for your stunners also good investments.
Spirit items improve magic damage, though not by much. You want to know what's more cost effective regarding the coins you spend and the additional magic damage you get. Is it the staff or the spirit? Make some quick calculations and you'll see which one you should upgrade.

You also want to improve your spirit gear to higher grades for the bonus stats they add to your mages (critical hit, dodge, and block)