Their effect is modified to be different from the RMS link above, and have the following effects instead.
Slotted
Def: 1
Mdef: 1
All Stats + 1
Protect its user from Blind.
Equips Upper and Middle.
Cannot be traded/sold, but can be stored.
Refineable.
No allegiance: Zen Helm
Stats: To be determined but will only apply if wearer is neutral still, currently cosmetic purposes only. Will allow the buyer to skip the future quest for it. Cannot be traded/sold, but can be stored.
Zen Helm has a quest in the plan for sure.
The Soul Ring and Executioner's Hood might be made available to everyone eventually through quests, but through the fairy auctions you can obtain it first before everyone else, and it's possible it will never be released again. So the highest bidder will have an exclusive gear, however there is no promises on how long will this exclusiveness will last. GMs also reserve all rights to award those hats as future event prizes if deemed suitable on top of making it available for quests. However, this *may* be the only way to obtain these hats for the meantime or forever.