Circlets.

Yeah! The good stuff at last!
Let's put it clear. There are 4 major types (the ones everyone knows about) of circlets and 4 minor (sounds like Fort Minor, if you know who that is. The ones that nobody know about). Almighty list ahead:


-Major types:
When you Level Up your Soul Class, you'll get some stats added to your Circlet at certain Levels (you have to be wearing the Circlet). These are them:
-Silver Circlet: Literally useless. The worst of the worst kinds of Circlets (if it has to fit in the Circlet category). Obtained when making a Celestial God when your God is Level 356 - 380. Stats: 10% Mana Saving Rate, 80 Defense and 30 Piercing Damage.
-Gold Circlet: Better than a Silver one, but still in the same tier. Obtained when making a Celestial God when your God is Level 381 - 399. Stats: 10% Mana Saving Rate, 90 Defense, 30 Absorbed Damage and 30 Piercing Damage.
-Mystic Circlet: Obtained when making a Celestial God when your God is Level 400. Stats: 10% Mana Saving Rate, 110 Defense, 40 Absorbed Damage and 40 Piercing Damage. Can be upgraded to an Arcane Circlet.
-Arcane Circlet: Obtained with luck. Nah, not really. Obtained when succeeding the mini-quest. You need 4 different Secret Stones and a Stone of Fury in your Inventory, 500 Fame Points and your fancy Mystic Circlet equipped. Right click the Stone Of Fury and hope. Hope as hard as you can. If you succeeded you'll get your Mystic Circlet transformed into an Arcane Circlet (which is really, really cool, by the way) with any stats that it had (Hit Point and Defense). If you fail nothing happens to your precious tiara-like helmet. All the said items and Fame will disappear, regardless of success or failure. Stats: Get me an Arcane and maybe I'll tell you. So far, the only thing I can tell you is that it has a percentual increase to your Hit Point and Mana (and a high one).

-Minor types:
 Same stats as an Arcane Circlet, but only upgradeable up to +9. Gotten only by making a Hardcore Character. Irremovable. Upgraded by spending 100 Fame Points when talking to the weird NPC God Government in Noatun (you need to "re-log" the Hardcore Character for the upgrade to take effect and it has a 100% success rate).
These are the following:
-Dragon Armor: Circlet given to Transknight body Hardcore Characters. Irremovable.
-Demon Armor: Circlet given to Foema body Hardcore Characters. Irremovable.
-Blast Armor: Circlet given to Beast Master body Hardcore Characters. Irremovable.
-Griffin Armor: Circlet given to Hunter body Hardcore Characters. Irremovable.

-Trivia:
-You will get an Mystic Circlet when Unlocking the Experience Limit of a Level 90 Celestial God.
-Circlets can be upgraded to +10 and above, like any armor or weapon.
-The day I have an Arcane Circlet I'll be somewhat happy for some time. You should too.
-Never show off with your brother's Isis +15 and Arcane +15 or call him to come to your aid with his Celestial God only to end up crying against two mere Mortals. Yeah, nasty 3 Celestial Gods versus 2 Mortals and still win (thanks to Pvt.Hatchu anyway, I die in 2 hits. Nah, not really *lol*). Anyway beware "--FuA--", as your brother might end up without his Operator/Chief position for sharing his account with you.
-Yes, I'm really mad at him.

Hope it helped.