Rune Ring ring_rune

What it is for

Armor piece for the Accessory slot. Requires level 31 to equip.

Has 1 card slot(s). LUK +6. VS_RACE:PLANT +15.

Sells to an NPC for about 19,100 gold. Weighs 18 of your carry capacity — and weight is what stops drops once the bag fills up.

The best source is Ice Slug, at 0.11% per kill. You can farm it at Ice Caverns.