Rune Helm helm_rune

What it is for

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

Adds 9 defense. Has 2 card slot(s). EXP gained +3%.

Part of the Runic Vigil set (11 pieces). With 2 pieces: EXP gained +5%. With 4 pieces: Chance to cast a Holy strike on attack 4%, Damage taken from Undead −10%.

Sells to an NPC for about 8,575 gold. Weighs 34 of your carry capacity — and weight is what stops drops once the bag fills up.

The best source is Frozen Mud, at 0.20% per kill. You can farm it at Ice Caverns.