What armor to use for Golem with Magic Weapons?

It's advised to arrive in updated sets for your preferred specialization: Shroomite armor for ranged characters, Turtle armor for melee characters, Spectre Armor for magic characters, or Beetle Armor for melee characters who have defeated Golem already. If you are a magic character who has not attempted the Hardmode Dungeon yet, they should use Chlorophyte Armor. At minimum one would want Chlorophyte armor, Hallowed Armor,Mobile only.Dragon Armor or Frost Armor. Regardless of specialization one may prefer to use Beetle armor for the fight due to its high mitigation which is extremely useful for the Golem fight assuming you do not utilize the wall trick. NOTE:You need to have already defeated Golem to get Beetle armor.

As the wiki states, you should probably get spectre armor as you are a magic character. If you are low on ectoplasm you can use cholorophyte armor or beetle for overall survivability.

I suggest the chlorophyte armor and a very good megashark with high velocity bullets when fighting the golem if you have not fought plantera first ,if you have then get the special material you can bye from the cyborg to make a new type of bullets. stock up on them and if you get three turtle shells then you should make turtle shell armor with a knockback shield. it will take some time to get the supplies necessary to make these items but it will be well worth the time taken in doing so. also some additional information on magic weapons, get the angry nimbus rod that is very rarely dropped by the angry nimbus cloud that spawns when it rains.