Rune Shield shield_rune

What it is for

Armor piece for the Left hand slot. Requires level 31 to equip.

Adds 12 defense. Has 2 card slot(s).

Sells to an NPC for about 10,475 gold. Weighs 61 of your carry capacity — and weight is what stops drops once the bag fills up.

The best source is Frozen Dead, at 0.076% per kill. You can farm it at Ice Caverns.