Archmage Support

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Archmage SupportLightning, Support, Spell
Icon: ^
Requires Level 31Supports spell skills that deal damage with hits and have mana costs. Cannot support triggered skills, or skills used by totems, traps or mines. Cannot modify the skills of minions.Per 1% Quality:1Superior2Anomalous3DivergentSupported Skills have 0.5% increased Mana CostSupported Skills gain Added Cold Damage equal to 3% of Mana Cost, if Mana Cost is not higher than the maximum you could spend
Supported Skills lose Added Lightning Damage equal to 3% of Mana Cost, if Mana Cost is not higher than the maximum you could spend
Supported Skills have 1% reduced Mana Cost
Supported Skills have (1-7) to (15-134) added Lightning Damage
Supported Skills have base Mana Cost equal to 6% of Unreserved Maximum Mana, if that value is higher
Supported Skills gain Added Lightning Damage equal to (70-108)% of Mana Cost, if Mana Cost is not higher than the maximum you could spend
This is a Support Gem. It does not grant a bonus to your character, but to skills in sockets connected to it. Place into an item socket connected to a socket containing the Active Skill Gem you wish to augment. Right click to remove from a socket.
Archmage Support inventory icon.png
Level: 31
Purchase Costs
Normal1x Orb of Chance
Sell Price
1x Scroll Fragment
Item class: Support Skill Gems
Metadata ID: Metadata/Items/Gems/SupportGemArchmage

Archmage Support is a support gem that changes the linked spell's base mana cost to be equal to a proportion of your unreserved mana. It gives the skill added lightning damage based on how much mana was spent to cast that skill.

Skill functions

  • Supported Skills gain Added Lightning Damage equal to (#)% of Mana Cost... - Casting linked spells without triggers adds lightning damage based on mana cost of linked spell.


  • ...if Mana Cost is not higher than the maximum you could spend - Removes all lightning damage based on mana. While it is not possible to cast a spell that costs more than your current unreserved mana, IndigonIndigon
    Hubris Circlet
    Quality: +20%
    Energy Shield: (205-228)
    Requires Level 69, 154 Int(150-180)% increased Energy Shield
    (6-10)% increased maximum Mana
    Recover (8-10)% of Life when you use a Mana Flask
    Non-instant Mana Recovery from Flasks is also Recovered as Life
    (50-60)% increased Mana Cost of Skills for each 200 total Mana you have Spent Recently
    (20-25)% increased Spell Damage for each 200 total Mana you have Spent Recently, up to 2000%
    Where the body's limits begin,
    the mind's limits end.
    can raise the mana cost beyond base after the spell is already casted.
  • Vaal spells supported by archmage gain the mana cost and added lightning damage.


Damage Scaling - The base lightning damage scales with the base mana cost of skills. The base mana cost can be increased by having more total mana and increasing the mana cost of skills.

Gem level progression

Equal to
Mana Cost
Exp.Total Exp.
131521 to 1570%00
234571 to 1972%285,815285,815
336601 to 2174%252,595538,410
438631 to 2476%314,394852,804
540661 to 2778%388,7341,241,538
642692 to 3080%477,4371,718,975
744722 to 3382%583,7862,302,761
846752 to 3784%710,3593,013,120
948782 to 4286%1,355,5114,368,631
1050812 to 4788%1,138,8775,507,508
1152843 to 5290%1,368,2336,875,741
1254873 to 5892%1,638,3388,514,079
1356903 to 6594%1,956,64810,470,727
1458934 to 7296%3,655,18414,125,911
1560964 to 8098%3,017,32717,143,238
1662995 to 89100%7,720,12624,863,364
17641025 to 98102%15,058,45539,921,819
18661056 to 109104%25,964,21865,886,037
19681086 to 121106%62,460,771128,346,808
20701117 to 134108%211,508,743339,855,551
21721148 to 148110%N/AN/A
2274N/A9 to 164111%N/AN/A
2376N/A10 to 181112%N/AN/A
2478N/A11 to 200113%N/AN/A
2580N/A12 to 221114%N/AN/A
2682N/A13 to 244115%N/AN/A
2784N/A14 to 269116%N/AN/A
2886N/A16 to 296117%N/AN/A
2988N/A17 to 327118%N/AN/A
3090N/A19 to 360119%N/AN/A
3191N/A20 to 378119%N/AN/A
3292N/A21 to 396120%N/AN/A
3393N/A22 to 416120%N/AN/A
3494N/A23 to 436121%N/AN/A
3595N/A24 to 458121%N/AN/A
3696N/A25 to 480122%N/AN/A
3797N/A26 to 503122%N/AN/A
3898N/A28 to 528123%N/AN/A
3999N/A29 to 554123%N/AN/A
40100N/A31 to 581124%N/AN/A

Item acquisition

Upgrade paths

This item can be acquired through the following upgrade paths or vendor recipes:

9Gift of the Gemling QueenGift of the Gemling Queen9Level 20 Support GemOur Lady Dialla,
as a symbol of our progress,
shines greater than all the gems.
random level 20 Support gemAutomatic
7Dialla's SubjugationDialla's Subjugation7Superior Support Gem
Quality: +23%
A symbol of beauty and innocence
The gems corrupted her mind
Malachai corrupted her gems
All but a glimmer of
greatness lost in madness
random corrupted superior Support gem (Q23)Automatic
6The FoxThe Fox6Level 20 Gem"Masters of wit, strength and cunning. To survive the harsh winters, you must be like the fox."
- Ezomyte Proverb
random level 20 gemAutomatic
13The CataclysmThe Cataclysm13Level 21 Spell Gem
The mighty warriors traded in blows, the nimble archers in arrows, yet it was the brazen thaumaturgists who would bring catastrophe to all.
random corrupted level 21 Spell gemAutomatic
3Gemcutter's PromiseGemcutter's Promise3Superior Gem
Quality: +20%
"I swore to use my position to help the people. What good is power when it just accumulates on the already-powerful?" - Erasmus, Imperial Gemcutter
random superior gem (Q20)Automatic

Quest reward

This item is given as a quest reward for the following quests:

Class →WitchShadowRangerDuelistMarauderTemplarScion
Quest ↓
A Fixture of Fate
Act 3

Vendor reward

This item can be bought at the listed NPC vendors, after completing the following quests:

Class →WitchShadowRangerDuelistMarauderTemplarScion
Quest ↓
A Fixture of Fate
Act 3
A Fixture of Fate
Act 3
Fallen from Grace
Act 6
Lilly Roth

Version history

Version Changes
  • Supported skills now gain added lightning damage equal to 70% of Mana Cost at gem level 1 (unchanged), up to 108% at gem level 20 (from 127%).
  • Archmage Support has been added to the game.