Ring of Summoning Affinity (Inevitable)
Aura: faint conjuration [law]
CL: 5th
Slot: ring
Price: 8,100 gp
Weight: —
Construction Requirements: Forge Ring, planar ally or planar binding, creator must be lawful neutral; Cost 4,050 GP
Source: Advanced Class Guide
Description
This ring resembles a gear or cog. If the wearer can cast summon monster spells, the wearer adds arbiter to the 3rd-level list of monsters she can summon with those spells, adds zelekhut to the 7th- level list, adds kolyarut to the 8th-level list, and adds marut to the 9th-level list. Also, once per day on command the wearer can use this ring to summon an arbiter, as if by the summon monster III spell.