Magic Damage Reduced

Diablo II Notation Basic Class Skill Item Ally Quest Area Monster Tale Attribute Unit Animation Attack Damage Death Crushing Blow Deadly Strike Enhanced Minimum Maximum Adds Damage Damage + % Damage to Demons to Undead Magic Fire Lightning Cold Poison Skill Damage ATD/ATLD DR/MDR Resistance Maximum Enemy Resist Sunder Immune Absorb Magic Damage Reduced applies to any magic and elemental (fire, lightning and cold) damage remaining after Cyclone Armor and then Energy Shield have been applied. MDR applies to each separately, so an attack applying 20 magic, 20 fire, 20 lightning and 20 cold damage would apply no damage after MDR 20 was applied. [1] Effectiveness is reduced when applied to magic or elemental damage applied by the following missile attacks: Damage Rate 41/1024 (~1/25) 82/1024 (~2/25) 205/1024 (~1/5) Arctic Blast Armageddon fire Fire Wall Firestorm Immolation Arrow pyre Meteor pyre Molten Boulder fire Catapult meteor pyre Countess fire wall Diablo armageddon fire Diablo firestorm Vampire fire wall Vampire meteor pyre Inferno Wake of Inferno Diablo lightning Fetish Shaman inferno Megademon inferno Salamander fire cloud Wake of Fire [2] When MDR completely negates magic and elemental damage, it does not matter if Lower Resist, Conviction or -% Enemy Resistance then reduce resistance, since there is no damage to which resistance can be applied (although resistance will still apply to cold length or freeze length). A combination of resistance and Absorb is generally more effective at significantly reducing or even negating magic and elemental damage. When an attack applies magic or elemental damage and physical damage, and MDR > magic or elemental damage, the excess is applied to physical damage after Damage Resist or Damage Reduced by % has been applied. [3] [4] For example, an attack applying 100 physical damage and 50 fire, 50 lightning and 50 cold damage to a target with MDR 100 and DR 50%, would apply no fire (50-100 = -50), lightning (-50) or cold (-50) damage and 50 physical damage before excess MDR (-150 in total) applied: this would result in no (50-150 < 0) damage. Item Helm Value Source Min Rlvl Ladder 7 Mal Rune in socket 49 No Value Source Min Rlvl Ladder (1-2) Safety helm 13 No 2 Howltusk Great Helm 25 No 3 Radiance helm 27 No 3 Natalya's Totem Grim Helm 59 No (7-10) Horazon's Countenance Demonhead 62 10 Hwanin's Splendor Grand Crown 45 No (10-15) Vampire Gaze Grim Helm 41 No Circlet Value Source Min Rlvl Min Alvl 1 Circlet of Warding 5 7 2 Circlet of the Sentinel 12 18 3 Circlet of Guarding 19 26 (4-6) Circlet of Negation 35 42 2 Circlet of the Sentinel 18 24 3 Circlet of Guarding 24 32 (4-6) Circlet of Negation 33 41 Amulet Value Source Min Rlvl Min Alvl 1 Amulet of Warding 5 7 2 Amulet of the Sentinel 12 18 3 Amulet of Guarding 19 26 (4-6) Amulet of Negation 35 42 Value Source Min Rlvl Ladder 1 Tancred's Weird Amulet 20 No (1-2) Safety Amulet 13 No 10 Crescent Moon Amulet 50 No (8-12) Entropy Locket Amulet 54 Body armor Value Source Min Rlvl Min Alvl 1 Body armor of Warding 5 7 2 Body armor of the Sentinel 18 24 3 Body armor of Guarding 24 32 (4-6) Body armor of Negation 33 41 Value Source Min Rlvl Ladder 7 Mal Rune in socket 49 No Value Source Min Rlvl Ladder (1-2) Safety body armor 13 No 1 Iceblink Splint Mail 22 No 2 Berserker's Hauberk Splint Mail 3 No 2 Isenhart's Case Breast Plate 8 No 3 Greyform Quilted Armor 7 No 3 Stealth body armor 17 No 7 Rain body armor 49 No (6-10) Que-Hegan's Wisdom Mage Plate 51 No 10 Skullder's Ire Russet Armor 42 No (7-11) The Spirit Shroud Ghost Armor 28 No (5-12) M'avina's Embrace Kraken Shell 70 No (9-13) Skin of the Vipermagi Serpentskin Armor 29 No 15 Tal Rasha's Guardianship Lacquered Plate 71 No (10-16) Iron Pelt Trellised Armor 33 No 17 Prudence body armor 49 No (15-20) The Gladiator's Bane Wire Fleece 85 No Axe Value Source Min Rlvl Ladder (12-15) Spellsteel Bearded Axe 39 No Bow Value Source Min Rlvl Ladder (9-13) Magewrath Rune Bow 43 No Club Value Source Min Rlvl Ladder 2 Stoutnail Spiked Club 5 No 2 Black club 35 No Hammer Value Source Min Rlvl Ladder 2 Black hammer 35 No Mace Value Source Min Rlvl Ladder 2 Black mace 35 No (9-12) Moonfall Jagged Star 42 No Orb Value Source Min Rlvl Min Alvl 1 Orb of Warding 5 7 2 Orb of the Sentinel 12 18 3 Orb of Guarding 19 26 (4-6) Orb of Negation 35 42 Scepter Value Source Min Rlvl Ladder 1 Rusthandle Grand Scepter 17 No Spear Value Source Min Rlvl Ladder (1-2) Safety spear 13 No Staff Value Source Min Rlvl Ladder 7 Memory staff 37 No (5-8) Ondal's Wisdom Elder Staff 66 No 15 Razorswitch Jo Staff 28 No Sword Value Source Min Rlvl Ladder 3 The Patriarch Great Sword 29 No (7-12) Ginther's Rift Dimensional Blade 37 No Wand Value Source Min Rlvl Ladder 4 White wand 35 No Shield Value Source Min Rlvl Min Alvl 1 Shield of Warding 5 7 2 Shield of the Sentinel 18 24 3 Shield of Guarding 24 32 (4-6) Shield of Negation 33 41 Value Source Min Rlvl Ladder 7 Mal Rune in socket 49 No Value Source Min Rlvl Ladder (1-2) Safety shield 13 No 1 Stormguild Large Shield 13 No 2 The Ward Gothic Shield 26 No 5 Bverrit Keep Tower Shield 19 No 7 Sanctuary shield 49 No (14-18) Gerke's Sanctuary Pavise 44 No Auric shield Value Source Min Rlvl Ladder (5-9) Alma Negra Sacred Rondache 77 No Ring Value Source Min Rlvl Ladder (1-2) Safety Ring 13 No 3 Nagelring Ring 7 No (12-15) Dwarf Star Ring 45 No Value Source Min Rlvl Min Alvl 1 Ring of Warding 5 7 2 Ring of the Sentinel 12 18 Belt Value Source Min Rlvl Ladder (1-2) Safety belt 13 No (10-15) String of Ears Demonhide Sash 29 No Boots Value Source Min Rlvl Ladder 1 Goblin Toe Light Plated Boots 22 No (1-2) Safety boots 13 No Gloves Value Source Min Rlvl Ladder (1-2) Safety gloves 13 No Set bonus Value Source Min Rlvl Ladder 3 Cathan's Traps (Full) 11 No 15 Natalya's Odium (2 items) 59 No 10 Immortal King (Full) 76 No Reference A few random questions (D2 Technical) PDR/MDR Overflow Mechanic (D2 Technical) Gustafsson, Tommi, Magic Damage Reduction Modification vs, Frame-Based Attacks (Internet Archive)