First of all, the best armor for mage is the "Spectre" armor, not spectral. If you are thinking of mobile, then remember that they added the spectre armor there, making it the best. Second, the "Staff Of Frost Hydra" is actually called "Staff Of The Frost Hydra" so please accept that. Other than that, great quiz!
Your rarity colours are wrong. The terrablade is not the best sword. The zenith is, but in older versions with meowmere or star wrath. Mimics do not drop a pet, but ice mimics do, so you should have specified ice mimic.