Gain additional Elemental Damage Reduction equal to half your Chaos Resistance grants #% damage reduction equal to half of the character's capped Chaos Resistance. This equals to a maximum of 35% Elemental Damage Reduction with 70% max Chaos Res, or 40% Elemental Damage Reduction with both max res buffs from Mahuxotl's MachinationMahuxotl's Machination Steel Kite ShieldChance to Block: 26% Armour: (146-167) Energy Shield: (30-35) Movement Speed: -3%Requires Level 46, 60 Str, 60 IntCorrupted Soul Divine Flesh Eternal Youth Everlasting Sacrifice Immortal Ambition Vaal PactThe Banished Architect sought to employ all the darkest secrets of the Vaal... at the same time. (80% max Chaos Res).
It has strong synergy with LoreweaveLoreweave Elegant RingmailArmour: (377-433) Energy Shield: (107-155) Movement Speed: -5%Requires Level 64, 90 Str, 105 IntHas 6 Sockets +(8-24) to all Attributes Adds (4-10) to (14-36) Physical Damage to Attacks (20-60)% increased Global Critical Strike Chance +(15-50) to maximum Energy Shield +(20-60) to maximum Life +(20-50) to maximum Mana (6-30)% increased Rarity of Items found (15-50)% increased Elemental Damage Your Maximum Resistances are (76-78)%When it comes to finding a use for surplus, a rich man has within himself boundless creativity., Transcendence, and Unbreakable, as long as the player converts Physical Damage taken to Elemental.
Elemental Damage Reduction works with Damage over Time.[1] This includes the self-burn damage from Righteous Fire.[2]
Item acquisition
Eternal Damnation has restrictions on where or how it can drop. It cannot be chanced.
Drops from Lycia, Herald of the Scourge when The Power and the PromiseThe Power and the Promise Tome RelicRequires Level 64The Herald of the Scourge drops Eternal Damnation Cannot have Inspiration Cannot recover Resolve Cannot be used with Forbidden Tomes below level 80 This item is destroyed when applied to a SanctumUnmodifiable"Building on the fear and hatred that deified him, Innocence threatened an eternity of flames for nonbelievers. The newcomers wailed and threw themselves at his feet in the thousands." - Lycia, the HereticPlace this item on the Relic Altar at the start of each Sanctum run is applied to a Sanctum with a level 80+ Forbidden TomeForbidden TomeArea Level: (68-83)Mundus noster cecidit. Daemones ubique sunt. Librum hunc in sacrarium conicio, ut forte alius viam inveniat...Take this item to the Relic Altar in the Forbidden Sanctum to enter..
Monster restrictions
This item can be acquired from the following monsters:
Items specific to Sanctum league have been temporarily drop disabled as a result of the mechanic not going core. [Undocumented This change was not documented by any official sources. It was discovered through player testing or datamining.]
Agate AmuletAgate AmuletRequires Level 16+(16-24) to Strength and Intelligence
.
Mahuxotl's MachinationMahuxotl's Machination
(80% max Chaos Res).
LoreweaveLoreweave
, 
Transcendence, and 
Unbreakable, as long as the player converts Physical Damage taken to Elemental.
The Power and the PromiseThe Power and the Promise
is applied to a Sanctum with a level 80+ 
Forbidden TomeForbidden TomeArea Level: (68-83)Mundus noster cecidit. Daemones ubique sunt. Librum
.