If you can think of an alternate version, please post it in the comments, here's what I got so far..... Help the developers brainstorm!
1) Keylock Ring (I think this version might be a bit overpowered)
Mechanic Skills +22 (Search, Spot, Open Lock, Disable Trap)
Accuracy +31
Seeker +19
Deadly +16
2) Keylock Ring (Frankly I feel this version is a winner)
Mechanic Skills +22 (Search, Spot, Open Lock, Disable Trap)
You can use your Intelligence modifier for damage and to hit with Melee and Missile weapons.
3) Keylock Ring (this one would require a bit more of programming and testing than the other two, also this would still be a swap item )
Mechanic Skills +22 (Search, Spot, Open Lock, Disable Trap)
Rogue's Focus: Your concentration skill determines whether or not you can take damage and be interrupted while disarming a trap or opening a lock, while opening a lock or disabling a trap you gain +20 profane concentration.
4) Keylock Ring
Mechanic Skills +22 (Search, Spot, Open Lock, Disable Trap)
Dream Vision +(Debating on what would be legendary level appropriate here)
5) Keylock Ring
Mechanic Skills +22 (Search, Spot, Open Lock, Disable Trap)
Attacks now deal 1d10 constitution damage