This could be the conversion for the D&D 3rd Ed. d20 system of the 9 Rings that Sauron gave to the mortal men to corrupt them:
The Nine Men RINGS OF POWER
- Continuous Nondetection (wizard/sorcerer 3rd level) and Invisibility (wizard/sorcerer 2nd level) on self.
- Use of any Charm related spell at will.
- Unable to be stunned.
- It works as a Ring of Protection +3 and as a Cloak of Resistance +3.
- It works as a Ring of Wizardry (doubling the last wizard/sorcerer level caster domains)
- If user is human he must immediately make a one quarter Will opposed check to Sauron’s (who will count to a total of 180) per round wearing it or become slave to him and transformed into a Nazgûl. If user is from another race he will make only a half check.
Please, let me know what you think of it
The Nine Men RINGS OF POWER
- Continuous Nondetection (wizard/sorcerer 3rd level) and Invisibility (wizard/sorcerer 2nd level) on self.
- Use of any Charm related spell at will.
- Unable to be stunned.
- It works as a Ring of Protection +3 and as a Cloak of Resistance +3.
- It works as a Ring of Wizardry (doubling the last wizard/sorcerer level caster domains)
- If user is human he must immediately make a one quarter Will opposed check to Sauron’s (who will count to a total of 180) per round wearing it or become slave to him and transformed into a Nazgûl. If user is from another race he will make only a half check.
Please, let me know what you think of it