The wiki has a list of all equipment, here's the list for staffs:
https://www.exiledkingdoms.com/wiki/ind ... itle=Staff
For clarity, staffs are the 2-H option for mages, whereas wands are the 1-H option.
Since you didn't say which staff you currently have, one can't really compare to what's available, but, I'm guessing you're on the early game if you're eyeing the Caduceus of Scorching sold in New Garand (The Oak Wand is sold in Kingsbridge).
Staffs with Arcane attribute cost mana to use, which can burn through your mana pool if you're not careful. It's a good idea to keep at least one non Arcane staff with you as a back up option. The Mage skill Arcanist reduces the mana cost of wands and staffs.
Even summoner builds need spells and weapons to attack. Thus, if you're struggling, you might benefit from tweaking your overall build. Or just keep pushing until you get the next few wave of items/skills that work.
Keep in mind that mages start off pretty weak, no mater the build, but become strong by mid-to-late game.