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An Um rune is a mid rune which can be socketed into equipment in Diablo II: Lord of Destruction. Although Um runes are only somewhat rare, their use in some popular rune words, such as Duress, and their all resists mod make them fairly valuable.

Effects[]

Equipment type Effects
Weapon +25% Chance of Open Wounds
Body armor or helm All Resistances +15
Shield All Resistances +22

Socketing an item with an Um rune increases the item's level requirement to 47, unless it was already higher.

The increase in resistances offered by the Um rune in a shield is somewhat higher than that of a Perfect Diamond; however, as this is offset by its rarity and expense, the Um rune is most often used in socketed body armor and helms.

Sources[]

The Countess's extra rune drops on hell difficulty can include Um runes.

The Hellforge on nightmare or hell difficulty has a 1 in 11 chance to drop an Um rune as part of its quest reward. Um is the highest rune that nightmare Hellforge can drop.

The Act 4 (N) Good treasure class has a chance to drop an Um rune, as do higher Good treasure classes.

In single-player, open or ladder games only, the Horadric Cube can transmute two Pul runes and one flawed diamond into one Um rune.

Rune Words[]

Um runes are used in these rune words:

  • Beast 'BerTirUmMalLum' axe, scepter or hammer
  • Bone 'SolUmUm' body armor
  • Chains of Honor 'DolUmBerIst' body armor
  • Chaos 'FalOhmUm' katar
  • Crescent Moon 'ShaelUmTir' axe, sword or polearm
  • Doom 'HelOhmUmLoCham' axe, polearm or hammer
  • Duress 'ShaelUmThul' body armor
  • Gloom 'FalUmPul' body armor
  • Kingslayer 'MalUmGulFal' sword or axe
  • Plague 'ChamShaelUm' sword, dagger or claw
  • Stone 'ShaelUmPulLum' body armor

Recipes[]

Um runes are used in two Horadric Cube recipes.

  • Transmute two Um runes and a normal topaz to create one Mal rune. (single-player, open or ladder only)
  • Transmute an exceptional rare weapon, a Fal rune, an Um rune, and a perfect sapphire to upgrade the rare weapon's base weapon type to its elite version.
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