Io Rune

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Diablo II Notation Basic Class Skill Item Ally Quest Area Monster Tale
Modifiers Cube Socket Ethereal Prices Required Durability Repairs Stack Size Replenish Indestructible
Treasure Item code Item type Affix Crafted Set Unique Gem Rune Word Consumable
Low El Eld Tir Nef Eth Ith Tal Ral Ort Thul Amn
Medium Sol Shael Dol Hel Io Lum Ko Fal Lem Pul Um
High Mal Ist Gul Vex Ohm Lo Sur Ber Jah Cham Zod

Io Rune can only drop in Expansion games. It requires one inventory space and cannot be stacked, and it can be sold to any vendor in town for 13,720 gold beyond Act 2 in Normal. It adds the following modifiers to an item when placed in any socket:


Rune Code Rlvl Weapon Helm and body armor Shield
Io Rune.gif Io Rune r16 35 +10 Vitality +10 Vitality +10 Vitality


It is required to make the following 14 Rune Words:


Rune Word Item 1 Item 2 Item 3 Socket 1 2 3 4 5 6 LoD Patch LoD Ladder D2R Patch D2R Ladder Rlvl
Black Club Hammer Mace 3 Thul Io Nef 1.07 (1.09 SP) No 2.0 No 35
Delirium Helm 3 Lem Ist Io 1.10 No 2.0 No 51
Dream Helm Shield 3 Io Jah Pul 1.10 Yes 2.0 No 65
Memory Staff 4 Lum Io Sol Eth 1.07 (1.09 SP) No 2.0 No 37
Pride Polearm 4 Cham Sur Io Lo 1.10 Yes 2.0 No 67
Pride Spear 4 Cham Sur Io Lo n.a. n.a. 2.4 No 67
White Wand 2 Dol Io 1.07 (1.09 SP) No 2.0 No 35
Obsession Staff 6 Zod Ist Lem Lum Io Nef n.a. n.a. 2.4 No 69
Unbending Will Sword 6 Fal Io Ith Eld El Hel n.a. n.a. 2.4 No 41
Bulwark Helm 3 Shael Io Sol n.a. n.a. 2.6 Yes 35
Cure Helm 3 Shael Io Tal n.a. n.a. 2.6 Yes 35
Ground Helm 3 Shael Io Ort n.a. n.a. 2.6 Yes 35
Hearth Helm 3 Shael Io Thul n.a. n.a. 2.6 Yes 35
Metamorphosis Helm 3 Io Cham Fal n.a. n.a. 2.6 Yes 67
Temper Helm 3 Shael Io Ral n.a. n.a. 2.6 Yes 35
Coven Helm 3 Ist Ral Io n.a. n.a. 51


It is involved in the following Horadric Cube formulae:


Formula Output Input
Upgrade rune
Ladder 		Io Rune
Lum Rune


Drop chance has not been updated for 1.13

Chance 1 in X Treasure Class Quality
0.0124093632 80.584313 Countess (N) Unique: 883 Set: 883 Rare: 983 Magic: 1024
0.0122472208 81.651178 Countess (H) Unique: 883 Set: 883 Rare: 983 Magic: 1024
0.0001836651 5444.692924 Andariel (N) Unique: 983 Set: 983 Rare: 983 Magic: 1024
0.0001830296 5463.596620 Duriel (N) Unique: 983 Set: 983 Rare: 983 Magic: 1024
0.0001823689 5483.391565 Andariel (H) Unique: 983 Set: 983 Rare: 983 Magic: 1024
0.0001823351 5484.406515 Duriel (H) Unique: 983 Set: 983 Rare: 983 Magic: 1024
0.0001598148 6257.241117 Summoner (N) Unique: 900 Set: 900 Rare: 972 Magic: 1024
0.0001558534 6416.285050 Summoner (H) Unique: 900 Set: 900 Rare: 972 Magic: 1024
0.0001548896 6456.210897 Baal Unique: 983 Set: 983 Rare: 983 Magic: 1024
0.0001530236 6534.939271 Mephisto (N) Unique: 983 Set: 983 Rare: 983 Magic: 1024
0.0001528720 6541.421920 Diablo (N) Unique: 983 Set: 983 Rare: 983 Magic: 1024
0.0001527854 6545.129966 Baal (N) Unique: 983 Set: 983 Rare: 983 Magic: 1024
0.0001526915 6549.154566 Mephisto (H) Unique: 983 Set: 983 Rare: 983 Magic: 1024
0.0001526896 6549.233733 Diablo (H) Unique: 983 Set: 983 Rare: 983 Magic: 1024
0.0001526896 6549.233733 Baal (H) Unique: 983 Set: 983 Rare: 983 Magic: 1024
0.0001475150 6778.971440 Blood Raven (N) Unique: 800 Set: 800 Rare: 972 Magic: 1024
0.0001455934 6868.443015 Nihlathak (N) Unique: 900 Set: 900 Rare: 900 Magic: 1024
0.0001455934 6868.443015 Haphesto (N) Unique: 800 Set: 800 Rare: 900 Magic: 1024
0.0001455109 6872.336463 Blood Raven (H) Unique: 800 Set: 800 Rare: 972 Magic: 1024
0.0001454197 6876.645418 Haphesto (H) Unique: 800 Set: 800 Rare: 900 Magic: 1024
0.0001430359 6991.249508 Nihlathak (H) Unique: 900 Set: 900 Rare: 900 Magic: 1024
0.0001307389 7648.835257 Radament (N) Unique: 900 Set: 900 Rare: 900 Magic: 1024
0.0001302428 7677.969110 Radament (H) Unique: 900 Set: 900 Rare: 900 Magic: 1024
0.0000953946 10482.777567 Council (N) Unique: 650 Set: 800 Rare: 800 Magic: 1024
0.0000951875 10505.581271 Council (H) Unique: 650 Set: 800 Rare: 800 Magic: 1024
0.0000761398 13133.732148 Act 1 (N) Super C Unique: 800 Set: 800 Rare: 972 Magic: 1024
0.0000761398 13133.732148 Act 1 (N) Super B Unique: 800 Set: 800 Rare: 972 Magic: 1024
0.0000761398 13133.732148 Act 1 (N) Super A Unique: 800 Set: 800 Rare: 972 Magic: 1024
0.0000756147 13224.936885 Act 2 (N) Super C Unique: 800 Set: 800 Rare: 972 Magic: 1024
0.0000756147 13224.936885 Act 2 (N) Super B Unique: 800 Set: 800 Rare: 972 Magic: 1024
0.0000753531 13270.855936 Act 3 (N) Super C Unique: 800 Set: 800 Rare: 972 Magic: 1024
0.0000753531 13270.855936 Act 3 (N) Super B Unique: 800 Set: 800 Rare: 972 Magic: 1024
0.0000753531 13270.855936 Act 3 (N) Super A Unique: 800 Set: 800 Rare: 972 Magic: 1024
0.0000752225 13293.895183 Act 4 (N) Super B Unique: 800 Set: 800 Rare: 972 Magic: 1024
0.0000752225 13293.895183 Act 4 (N) Super A Unique: 800 Set: 800 Rare: 972 Magic: 1024
0.0000751479 13307.083323 Act 5 (N) Super Cx Unique: 800 Set: 800 Rare: 972 Magic: 1024
0.0000751479 13307.083323 Act 5 (N) Super C Unique: 800 Set: 800 Rare: 972 Magic: 1024
0.0000751479 13307.083323 Act 5 (N) Super B Unique: 800 Set: 800 Rare: 972 Magic: 1024
0.0000751479 13307.083323 Act 5 (N) Super A Unique: 800 Set: 800 Rare: 972 Magic: 1024
0.0000751054 13314.626879 Act 1 (H) Super Ax Unique: 800 Set: 800 Rare: 972 Magic: 1024
0.0000750811 13318.939926 Act 2 (H) Super C Unique: 800 Set: 800 Rare: 972 Magic: 1024
0.0000750672 13321.405346 Act 3 (H) Super C Unique: 800 Set: 800 Rare: 972 Magic: 1024
0.0000750672 13321.405346 Act 3 (H) Super B Unique: 800 Set: 800 Rare: 972 Magic: 1024
0.0000750592 13322.814425 Act 4 (H) Super C Unique: 800 Set: 800 Rare: 972 Magic: 1024
0.0000750592 13322.814425 Act 4 (H) Super B Unique: 800 Set: 800 Rare: 972 Magic: 1024
0.0000750592 13322.814425 Act 4 (H) Super A Unique: 800 Set: 800 Rare: 972 Magic: 1024
0.0000750583 13322.975480 Act 5 (H) Super Cx Unique: 800 Set: 800 Rare: 972 Magic: 1024
0.0000750583 13322.975480 Act 5 (H) Super C Unique: 800 Set: 800 Rare: 972 Magic: 1024
0.0000750583 13322.975480 Act 5 (H) Super B Unique: 800 Set: 800 Rare: 972 Magic: 1024
0.0000750583 13322.975480 Act 5 (H) Super A Unique: 800 Set: 800 Rare: 972 Magic: 1024
0.0000625874 15977.652254 Cow King (N) Unique: 850 Set: 983 Rare: 983 Magic: 1024
0.0000625874 15977.652254 Cow King (H) Unique: 850 Set: 983 Rare: 983 Magic: 1024
0.0000380706 26266.964286 Act 1 (N) Unique C Unique: 800 Set: 800 Rare: 800 Magic: 1024
0.0000380706 26266.964286 Act 1 (N) Unique B Unique: 800 Set: 800 Rare: 800 Magic: 1024
0.0000378081 26449.373760 Act 2 (N) Unique C Unique: 800 Set: 800 Rare: 800 Magic: 1024
0.0000378081 26449.373760 Act 2 (N) Unique B Unique: 800 Set: 800 Rare: 800 Magic: 1024
0.0000378081 26449.373760 Act 2 (N) Unique A Unique: 800 Set: 800 Rare: 800 Magic: 1024
0.0000376773 26541.211863 Act 3 (N) Unique C Unique: 800 Set: 800 Rare: 800 Magic: 1024
0.0000376773 26541.211863 Act 3 (N) Unique B Unique: 800 Set: 800 Rare: 800 Magic: 1024
0.0000376773 26541.211863 Act 3 (N) Unique A Unique: 800 Set: 800 Rare: 800 Magic: 1024
0.0000376120 26587.290356 Act 4 (N) Unique B Unique: 800 Set: 800 Rare: 800 Magic: 1024
0.0000376120 26587.290356 Act 4 (N) Unique A Unique: 800 Set: 800 Rare: 800 Magic: 1024
0.0000375747 26613.666636 Act 5 (N) Unique C Unique: 800 Set: 800 Rare: 800 Magic: 1024
0.0000375747 26613.666636 Act 5 (N) Unique B Unique: 800 Set: 800 Rare: 800 Magic: 1024
0.0000375747 26613.666636 Act 5 (N) Unique A Unique: 800 Set: 800 Rare: 800 Magic: 1024
0.0000375534 26628.753749 Smith (N) Unique: 800 Set: 800 Rare: 800 Magic: 1024
0.0000375534 26628.753749 Smith (H) Unique: 800 Set: 800 Rare: 800 Magic: 1024
0.0000375534 26628.753749 Griswold (N) Unique: 800 Set: 800 Rare: 800 Magic: 1024
0.0000375534 26628.753749 Griswold (H) Unique: 800 Set: 800 Rare: 800 Magic: 1024
0.0000375534 26628.753749 Act 1 (H) Unique C Unique: 800 Set: 800 Rare: 800 Magic: 1024
0.0000375534 26628.753749 Act 1 (H) Unique B Unique: 800 Set: 800 Rare: 800 Magic: 1024
0.0000375534 26628.753749 Act 1 (H) Unique A Unique: 800 Set: 800 Rare: 800 Magic: 1024
0.0000375412 26637.379843 Act 2 (H) Unique C Unique: 800 Set: 800 Rare: 800 Magic: 1024
0.0000375412 26637.379843 Act 2 (H) Unique B Unique: 800 Set: 800 Rare: 800 Magic: 1024
0.0000375412 26637.379843 Act 2 (H) Unique A Unique: 800 Set: 800 Rare: 800 Magic: 1024
0.0000375343 26642.310683 Act 3 (H) Unique C Unique: 800 Set: 800 Rare: 800 Magic: 1024
0.0000375343 26642.310683 Act 3 (H) Unique B Unique: 800 Set: 800 Rare: 800 Magic: 1024
0.0000375343 26642.310683 Act 3 (H) Unique A Unique: 800 Set: 800 Rare: 800 Magic: 1024
0.0000375303 26645.128841 Act 4 (H) Unique B Unique: 800 Set: 800 Rare: 800 Magic: 1024
0.0000375303 26645.128841 Act 4 (H) Unique A Unique: 800 Set: 800 Rare: 800 Magic: 1024
0.0000375299 26645.450950 Act 5 (H) Unique C Unique: 800 Set: 800 Rare: 800 Magic: 1024
0.0000375299 26645.450950 Act 5 (H) Unique B Unique: 800 Set: 800 Rare: 800 Magic: 1024
0.0000375299 26645.450950 Act 5 (H) Unique A Unique: 800 Set: 800 Rare: 800 Magic: 1024
0.0000226960 44060.714286 Act 1 (N) Wraith C
0.0000226960 44060.714286 Act 1 (N) Wraith B
0.0000225394 44366.691468 Act 2 (N) Wraith C
0.0000225394 44366.691468 Act 2 (N) Wraith B
0.0000225394 44366.691468 Act 2 (N) Wraith A
0.0000224614 44520.742480 Act 3 (N) Wraith C
0.0000224614 44520.742480 Act 3 (N) Wraith A
0.0000224225 44598.035436 Act 4 (N) Wraith B
0.0000224225 44598.035436 Act 4 (N) Wraith A
0.0000224003 44642.279519 Act 5 (N) Wraith C
0.0000224003 44642.279519 Act 5 (N) Wraith B
0.0000224003 44642.279519 Act 5 (N) Wraith A
0.0000223876 44667.586933 Act 1 (H) Wraith C
0.0000223876 44667.586933 Act 1 (H) Wraith B
0.0000223876 44667.586933 Act 1 (H) Wraith A
0.0000223803 44682.056511 Act 2 (H) Wraith C
0.0000223803 44682.056511 Act 2 (H) Wraith B
0.0000223803 44682.056511 Act 2 (H) Wraith A
0.0000223762 44690.327597 Act 3 (H) Wraith C
0.0000223762 44690.327597 Act 3 (H) Wraith B
0.0000223762 44690.327597 Act 3 (H) Wraith A
0.0000223738 44695.054831 Act 4 (H) Wraith B
0.0000223738 44695.054831 Act 4 (H) Wraith A
0.0000223736 44695.595142 Act 5 (H) Wraith C
0.0000223736 44695.595142 Act 5 (H) Wraith B
0.0000223736 44695.595142 Act 5 (H) Wraith A
0.0000177028 56488.095238 Act 1 (N) Champ C Unique: 800 Set: 800 Rare: 800 Magic: 1024
0.0000177028 56488.095238 Act 1 (N) Champ B Unique: 800 Set: 800 Rare: 800 Magic: 1024
0.0000175808 56880.373677 Act 2 (N) Champ C Unique: 800 Set: 800 Rare: 800 Magic: 1024
0.0000175808 56880.373677 Act 2 (N) Champ B Unique: 800 Set: 800 Rare: 800 Magic: 1024
0.0000175808 56880.373677 Act 2 (N) Champ A Unique: 800 Set: 800 Rare: 800 Magic: 1024
0.0000175199 57077.874975 Act 3 (N) Champ C Unique: 800 Set: 800 Rare: 800 Magic: 1024
0.0000175199 57077.874975 Act 3 (N) Champ B Unique: 800 Set: 800 Rare: 800 Magic: 1024
0.0000175199 57077.874975 Act 3 (N) Champ A Unique: 800 Set: 800 Rare: 800 Magic: 1024
0.0000174896 57176.968508 Act 4 (N) Champ C Unique: 800 Set: 800 Rare: 800 Magic: 1024
0.0000174896 57176.968508 Act 4 (N) Champ B Unique: 800 Set: 800 Rare: 800 Magic: 1024
0.0000174896 57176.968508 Act 4 (N) Champ A Unique: 800 Set: 800 Rare: 800 Magic: 1024
0.0000174722 57233.691691 Act 5 (N) Champ C Unique: 800 Set: 800 Rare: 800 Magic: 1024
0.0000174722 57233.691691 Act 5 (N) Champ B Unique: 800 Set: 800 Rare: 800 Magic: 1024
0.0000174722 57233.691691 Act 5 (N) Champ A Unique: 800 Set: 800 Rare: 800 Magic: 1024
0.0000174623 57266.137094 Act 1 (H) Champ C Unique: 800 Set: 800 Rare: 800 Magic: 1024
0.0000174623 57266.137094 Act 1 (H) Champ B Unique: 800 Set: 800 Rare: 800 Magic: 1024
0.0000174623 57266.137094 Act 1 (H) Champ A Unique: 800 Set: 800 Rare: 800 Magic: 1024
0.0000174567 57284.687835 Act 2 (H) Champ C Unique: 800 Set: 800 Rare: 800 Magic: 1024
0.0000174567 57284.687835 Act 2 (H) Champ B Unique: 800 Set: 800 Rare: 800 Magic: 1024
0.0000174567 57284.687835 Act 2 (H) Champ A Unique: 800 Set: 800 Rare: 800 Magic: 1024
0.0000174534 57295.291790 Act 3 (H) Champ C Unique: 800 Set: 800 Rare: 800 Magic: 1024
0.0000174534 57295.291790 Act 3 (H) Champ B Unique: 800 Set: 800 Rare: 800 Magic: 1024
0.0000174534 57295.291790 Act 3 (H) Champ A Unique: 800 Set: 800 Rare: 800 Magic: 1024
0.0000174516 57301.352347 Act 4 (H) Champ B Unique: 800 Set: 800 Rare: 800 Magic: 1024
0.0000174516 57301.352347 Act 4 (H) Champ A Unique: 800 Set: 800 Rare: 800 Magic: 1024
0.0000174514 57302.045053 Act 5 (H) Champ C Unique: 800 Set: 800 Rare: 800 Magic: 1024
0.0000174514 57302.045053 Act 5 (H) Champ B Unique: 800 Set: 800 Rare: 800 Magic: 1024
0.0000174514 57302.045053 Act 5 (H) Champ A Unique: 800 Set: 800 Rare: 800 Magic: 1024
0.0000109201 91573.906705 Cow (N)
0.0000109071 91683.272086 Cow (H)
0.0000105195 95061.787576 Quill 4 (H)
0.0000105195 95061.787576 Quill 3 (H)
0.0000105195 95061.787576 Quill 2 (H)
0.0000105141 95110.184372 Quill 5 (H)
0.0000073762 135571.428571 Act 1 (N) Miss C
0.0000073762 135571.428571 Act 1 (N) Miss B
0.0000073762 135571.428571 Act 1 (N) Miss A
0.0000073762 135571.428571 Act 1 (N) H2H C
0.0000073762 135571.428571 Act 1 (N) H2H B
0.0000073762 135571.428571 Act 1 (N) H2H A
0.0000073762 135571.428571 Act 1 (N) Cast C
0.0000073762 135571.428571 Act 1 (N) Cast B
0.0000073762 135571.428571 Act 1 (N) Cast A
0.0000073253 136512.896825 Act 2 (N) Miss C
0.0000073253 136512.896825 Act 2 (N) Miss B
0.0000073253 136512.896825 Act 2 (N) Miss A
0.0000073253 136512.896825 Act 2 (N) H2H C
0.0000073253 136512.896825 Act 2 (N) H2H B
0.0000073253 136512.896825 Act 2 (N) H2H A
0.0000073253 136512.896825 Act 2 (N) Cast C
0.0000073253 136512.896825 Act 2 (N) Cast B
0.0000073253 136512.896825 Act 2 (N) Cast A
0.0000073000 136986.899939 Act 3 (N) Miss C
0.0000073000 136986.899939 Act 3 (N) Miss B
0.0000073000 136986.899939 Act 3 (N) Miss A
0.0000073000 136986.899939 Act 3 (N) H2H C
0.0000073000 136986.899939 Act 3 (N) H2H B
0.0000073000 136986.899939 Act 3 (N) H2H A
0.0000073000 136986.899939 Act 3 (N) Cast C
0.0000073000 136986.899939 Act 3 (N) Cast B
0.0000073000 136986.899939 Act 3 (N) Cast A
0.0000072873 137224.724418 Act 4 (N) Miss B
0.0000072873 137224.724418 Act 4 (N) Miss A
0.0000072873 137224.724418 Act 4 (N) H2H B
0.0000072873 137224.724418 Act 4 (N) H2H A
0.0000072873 137224.724418 Act 4 (N) Cast B
0.0000072873 137224.724418 Act 4 (N) Cast A
0.0000072801 137360.860058 Act 5 (N) Miss B
0.0000072801 137360.860058 Act 5 (N) Miss A
0.0000072801 137360.860058 Act 5 (N) H2H C
0.0000072801 137360.860058 Act 5 (N) H2H B
0.0000072801 137360.860058 Act 5 (N) H2H A
0.0000072801 137360.860058 Act 5 (N) Cast C
0.0000072801 137360.860058 Act 5 (N) Cast B
0.0000072801 137360.860058 Act 5 (N) Cast A
0.0000072760 137438.729026 Act 1 (H) H2H C
0.0000072760 137438.729026 Act 1 (H) H2H B
0.0000072760 137438.729026 Act 1 (H) H2H A
0.0000072760 137438.729026 Act 1 (H) Cast C
0.0000072760 137438.729026 Act 1 (H) Cast B
0.0000072760 137438.729026 Act 1 (H) Cast A
0.0000072736 137483.250804 Act 2 (H) Miss C
0.0000072736 137483.250804 Act 2 (H) Miss B
0.0000072736 137483.250804 Act 2 (H) Miss A
0.0000072736 137483.250804 Act 2 (H) H2H C
0.0000072736 137483.250804 Act 2 (H) H2H B
0.0000072736 137483.250804 Act 2 (H) H2H A
0.0000072736 137483.250804 Act 2 (H) Cast C
0.0000072736 137483.250804 Act 2 (H) Cast B
0.0000072736 137483.250804 Act 2 (H) Cast A
0.0000072723 137508.700297 Act 3 (H) Miss C
0.0000072723 137508.700297 Act 3 (H) Miss B
0.0000072723 137508.700297 Act 3 (H) Miss A
0.0000072723 137508.700297 Act 3 (H) H2H C
0.0000072723 137508.700297 Act 3 (H) H2H B
0.0000072723 137508.700297 Act 3 (H) H2H A
0.0000072723 137508.700297 Act 3 (H) Cast C
0.0000072723 137508.700297 Act 3 (H) Cast B
0.0000072723 137508.700297 Act 3 (H) Cast A
0.0000072715 137523.245633 Act 4 (H) Miss B
0.0000072715 137523.245633 Act 4 (H) Miss A
0.0000072715 137523.245633 Act 4 (H) H2H B
0.0000072715 137523.245633 Act 4 (H) H2H A
0.0000072715 137523.245633 Act 4 (H) Cast B
0.0000072715 137523.245633 Act 4 (H) Cast A
0.0000072714 137524.908128 Act 5 (H) Miss C
0.0000072714 137524.908128 Act 5 (H) Miss B
0.0000072714 137524.908128 Act 5 (H) Miss A
0.0000072714 137524.908128 Act 5 (H) H2H C
0.0000072714 137524.908128 Act 5 (H) H2H B
0.0000072714 137524.908128 Act 5 (H) H2H A
0.0000072714 137524.908128 Act 5 (H) Cast C
0.0000072714 137524.908128 Act 5 (H) Cast B
0.0000072714 137524.908128 Act 5 (H) Cast A
0.0000038933 256850.437386 Swarm 2 (N)
0.0000038793 257781.095258 Swarm 1 (H)
0.0000038785 257828.813057 Swarm 2 (H)
0.0000035981 277921.428571 Quill 4 (N)
0.0000035981 277921.428571 Quill 3 (N)
0.0000035610 280823.144876 Quill 5 (N)
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