Skull Ring: A ring made from the bones of fallen warriors.
Stat Bonus: +6 DEF, +4 SPD, +4 DEX, +40 HP, +40 MP
Fame Bonus: 5%
One might think this ring would belong to a set of some sort, but in actuality it doesn't. This ring's bonuses seem to still be rather similar to that of the Ring of Gyges and the Seal of the Creed, giving bonuses to defense, dexterity, speed, hp, and mp.
However, due to this ring not being part of a set yet also being very rare, the Skull Ring is relatively a mix in between, so if a player should like a mix in between the bonuses from the Gyges and Creed, this is a decent option.
Shaitan the Advisor at a rate of 0.005 (0.5% or 1/200)