Diablo II: Lord of Destruction/Horadric Cube

Since output normal items are only ILvl 1, items can be created with tiers 1-2 skill bonuses (particularly claws, since those that can have skill bonuses are normally too high in level to have tiers 1-2). This can also be used to restrict the maximum number of sockets the item can receive.

Magic item[edit]

Output	Input
Magic Item of same type ILvl = input ILvl	Magic item Any 3 perfect gems

Quest item[edit]

Output	Input
Token of Absolution	Twisted Essence of Suffering Charged Essence of Hatred Burning Essence of Terror Festering Essence of Destruction

Portals[edit]

Output	Input
Matron's Den	Key of Terror Key of Hate Key of Destruction
Forgotten Sands	Key of Terror Key of Hate Key of Destruction
Furnace of Pain	Key of Terror Key of Hate Key of Destruction
Tristram	Diablo's Horn Baal's Eye Mephisto's Brain

These portals can only be opened in Harrogath in Act V of Hell on the Realms (they cannot be opened in Single Player, despite the Keys being able to drop).

Socket[edit]

Output	Input
Socketed item Socket contents destroyed	Any socketed item Hel Rune Scroll of Town Portal

Normal items[edit]

Output	Input
Helm Socketed (1-6)	Helm with no sockets Ral Rune Thul Rune Perfect Sapphire
Body armor Socketed (1-6)	Body armor with no sockets Tal Rune Thul Rune Perfect Topaz
Weapon Socketed (1-6)	Weapon with no sockets Ral Rune Amn Rune Perfect Amethyst
Shield Socketed (1-6)	Shield with no sockets Tal Rune Amn Rune Perfect Ruby

Throwing weapons cannot be used as input.

Although 1-6 sockets are added, the number of sockets is restricted by item type, item level and specific item. For example, body armor can have maximum 4 sockets, ILvl < 26 body armor can have maximum 3 sockets, while any Splint Mail can have maximum 2 sockets: this means any Splint Mail has 1/6 chance of 1 socket and 5/6 chance of 2 sockets (2-6 sockets, restricted to 2).

BUG: Ethereal armor applies the ethereal defense bonus a second time to output: for example, normal Sacred Armor has (487-600) base defense so ethereal Sacred Armor has (730-900), but after socketing it will have (1,095-1,350). This can be (ab)used to create Rune Word armor with extremely high defense: for example, a Prudence body armor's (140-170)% Enhanced Defense would result in (2,628-3,645) defense when made in the socketed ethereal Sacred Armor.

Upgrade[edit]

Runes[edit]

Output	Input
Eld Rune	3 El Runes
Tir Rune	3 Eld Runes
Nef Rune	3 Tir Runes
Eth Rune	3 Nef Runes
Ith Rune	3 Eth Runes
Tal Rune	3 Ith Runes
Ral Rune	3 Tal Runes
Ort Rune	3 Ral Runes
Thul Rune	3 Ort Runes
Amn Rune	3 Thul Runes Chipped Topaz
Sol Rune	3 Amn Runes Chipped Amethyst
Shael Rune	3 Sol Runes Chipped Sapphire
Dol Rune	3 Shael Runes Chipped Ruby

Ladder and Single Player

Output	Input
Hel Rune	3 Dol Runes Chipped Emerald
Io Rune	3 Hel Runes Chipped Diamond
Lum Rune	3 Io Runes Flawed Topaz
Ko Rune	3 Lum Runes Flawed Amethyst
Fal Rune	3 Ko Runes Flawed Sapphire
Lem Rune	3 Fal Runes Flawed Ruby
Pul Rune	3 Lem Runes Flawed Emerald

Output	Input
Um Rune	2 Pul Runes Flawed Diamond
Mal Rune	2 Um Runes Topaz
Ist Rune	2 Mal Runes Amethyst
Gul Rune	2 Ist Runes Sapphire
Vex Rune	2 Gul Runes Ruby
Ohm Rune	2 Vex Runes Emerald
Lo Rune	2 Ohm Runes Diamond
Sur Rune	2 Lo Runes Flawless Topaz
Ber Rune	2 Sur Runes Flawless Amethyst
Jah Rune	2 Ber Runes Flawless Sapphire
Cham Rune	2 Jah Runes Flawless Ruby
Zod Rune	2 Cham Runes Flawless Emerald

Rare items[edit]

Output	Input
Exceptional rare armor Required Level +5	Normal rare armor Ral Rune Thul Rune Perfect Amethyst
Exceptional rare weapon Required Level +5	Normal rare weapon Ort Rune Amn Rune Perfect Sapphire
Elite rare armor Required Level +7	Exceptional rare armor Ko Rune Pul Rune Perfect Amethyst
Elite rare weapon Required Level +7	Exceptional rare weapon Fal Rune Um Rune Perfect Sapphire

Base item type is upgraded. An ethereal rare armor or weapon will remain ethereal (including an ethereal Crystal Sword or Dimensional Blade upgraded to Phase Blade), and any sockets or gems, jewels or runes in those sockets will also remain.

Required level increases are cumulative, so a rare item upgraded from Normal to Exceptional, then Exceptional to Elite will have Required Level +12 (5+7).

Although armor with Enhanced Defense normally has base defense set to its maximum value +1 (added before any ethereal bonus), upgraded armor with Enhanced Defense has its base defense value randomly selected again.

BUG: Upgraded ethereal items are set to the maximum Durability of the base Exceptional or Elite item. For example, when ethereal Mesh Armor (Durability [45/2] + 1 = 23) is upgraded to Boneweave, it now has maximum Durability 45.

Unique items[edit]

Output	Input
Exceptional Unique armor Required Level +5	Normal Unique armor Tal Rune Shael Rune Perfect Diamond
Exceptional Unique weapon Required Level +5	Normal Unique weapon Ral Rune Sol Rune Perfect Emerald

Ladder and Single Player

Output	Input
Elite Unique armor Required Level +7	Exceptional Unique armor Ko Rune Lem Rune Perfect Diamond
Elite Unique weapon Required Level +7	Exceptional Unique weapon Lum Rune Pul Rune Perfect Emerald

Base item type is upgraded, so Ginther's Rift Dimensional Blade becomes a Ginther's Rift Phase Blade (not a Lightsabre Phase Blade or an Azurewrath Phase Blade).

An ethereal Unique armor or weapon will remain ethereal (including an ethereal Crystal Sword or Dimensional Blade upgraded to Phase Blade), and any sockets or gems, jewels or runes in those sockets will also remain.

Required level increases are cumulative: a unique item upgraded from Normal to Exceptional, then Exceptional to Elite will have Required Level +12 (5+7).

Although armor with Enhanced Defense normally has base defense set to its maximum value +1 (added before any ethereal bonus), upgraded armor with Enhanced Defense has its base defense value randomly selected again.

BUG: Upgraded ethereal items are set to the maximum Durability of the base Exceptional or Elite item. For example, when ethereal Shaftstop Mesh Armor (Durability [45/2] + 1 = 23) is upgraded to Boneweave, it now has maximum Durability 45.

Repair[edit]

Output	Input
Repaired armor	Any non-ethereal armor Ral Rune
Repaired weapon	Any non-ethereal weapon Ort Rune

Repair and recharge[edit]

Output	Input
Repaired and recharged armor	Any non-ethereal armor Ral Rune Any flawed gem
Repaired and recharged weapon	Any non-ethereal weapon Ort Rune Any chipped gem