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Cast while Channelling SupportSupport, Channelling, Spell, Trigger
Icon: W
Level: (1-20)
Requires Level 38Must support both a channelling skill and a non-channelling spell skill to work. The channelling skill will trigger a spell periodically while channelling. Cannot support skills used by totems, traps, or mines. Vaal skills and skills that reserve mana cannot be triggered.Per 1% Quality:1Superior2Anomalous3DivergentSupported Channelling Skills deal 0.5% increased Damage
Supported Triggered Spells deal 0.5% increased Damage
Supported Skills have 0.5% increased Attack and Cast SpeedSupported Skills have 0.5% increased Effect of non-Damaging Ailments on Enemies
Trigger a Supported Spell every (0.45-0.35) seconds while Channelling Supported Skills
You cannot Cast Supported Triggerable Spells directly
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.
Cast while Channelling Support inventory icon
Acquisition
Area level: 38
Vendor Prices
Normal1x Orb of Alchemy
Vendor Offer
1x Scroll Fragment
Metadata
Item class: Support Skill Gems
Metadata ID: Metadata/Items/Gems/SupportGemCastWhileChannelling
For the awakened variant, see Awakened Cast while Channelling Support.

Cast while Channelling Support is a support gem that triggers linked non-channeling spells while the character is using a channelled skill.

Skill functions and interactions[ | ]

  • Triggered Spell Priority: Cast while Channelling follows the same restrictions as other trigger support gems such as Cast On Critical Strike Support inventory iconCast On Critical Strike SupportCast On Critical Strike SupportTrigger, Support, Spell
    Icon: &
    Level: (1-20)
    Requires Level 38Must support both an attack skill and a spell skill to work. The attack skill will trigger a spell when it critically strikes an enemy. Cannot support totems, traps, or mines. Vaal skills, channelling skills, and skills that reserve mana cannot be triggered.Per 1% Quality:1Superior2Anomalous3DivergentSupported Skills have 1% increased Attack Critical Strike Chance
    Supported Skills have 1% increased Spell Critical Strike Chance
    Supported Skills deal 1% more Attack DamageSupported Skills have 0.5% increased Attack Speed
    Supported Attacks will Trigger a Supported Spell when you Crit an Enemy
    Supported Skills deal (20-29)% more Spell Damage
    You cannot Cast Supported Triggerable Spells directly
    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.
    Cast On Critical Strike Support inventory icon
    , in that only one spell can be triggered per event. If multiple Spells are linked, the spells will cycle based on the order in which they are socketed.
  • Casting Interval: Unlike Cast On Critical Strike Support inventory iconCast On Critical Strike SupportCast On Critical Strike SupportTrigger, Support, Spell
    Icon: &
    Level: (1-20)
    Requires Level 38Must support both an attack skill and a spell skill to work. The attack skill will trigger a spell when it critically strikes an enemy. Cannot support totems, traps, or mines. Vaal skills, channelling skills, and skills that reserve mana cannot be triggered.Per 1% Quality:1Superior2Anomalous3DivergentSupported Skills have 1% increased Attack Critical Strike Chance
    Supported Skills have 1% increased Spell Critical Strike Chance
    Supported Skills deal 1% more Attack DamageSupported Skills have 0.5% increased Attack Speed
    Supported Attacks will Trigger a Supported Spell when you Crit an Enemy
    Supported Skills deal (20-29)% more Spell Damage
    You cannot Cast Supported Triggerable Spells directly
    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.
    Cast On Critical Strike Support inventory icon
    , the listed interval is not a cooldown. Cast while Channelling casts the trigger spell exactly on the listed interval regardless of the cast time of the channeled spell.
  • Spell Totem Support inventory iconSpell Totem SupportSpell Totem SupportSupport, Spell, Totem
    Icon: T
    Level: (1-20)
    Cost & Reservation Multiplier: 200%
    Requires Level 8Supports spell skills that are not triggered. Instead of casting that spell, you will summon a totem that casts the spell for you.Per 1% Quality:1Superior2Anomalous3Divergent1% increased Totem Placement speed1% increased Totem Duration1% increased Totem RangeSupported Skills will summon a Totem which uses that Skill
    Totem lasts 8 seconds
    Supported Skills deal (28-24)% less Damage
    Spells Cast by Totem have 40% less Cast Speed
    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.
    Spell Totem Support inventory icon
    : Cast while Channelling cannot support a skill gem that is supported by Spell Totem Support gem.

Gem level progression[ | ]

LevelRequired LevelRequired DexterityRequired IntelligenceCasting
Interval
more
Damage
Exp.Total Exp.
13827400.45sN/A00
24029410.44sN/A388734388734
34230430.44s1%477437866171
44431450.43s1%5837861449957
54633470.43s2%7103592160316
64834490.42s2%13555113515827
75035510.42s3%11388774654704
85237530.41s3%13682336022937
95438550.41s4%16383387661275
105639570.4s4%19566489617923
115841580.4s5%365518413273107
126042600.39s5%301732716290434
136243620.39s6%357623219866666
146444640.38s6%423166724098333
156545650.38s7%239507826493411
166646660.37s7%842106334914474
176746670.37s8%1615998351074457
186847680.36s8%4117036792244824
196948690.36s9%86794448179039272
207048700.35s9%157405063336444335
217250720.35s10%N/AN/A
2274N/AN/A0.34s10%N/AN/A
2376N/AN/A0.34s11%N/AN/A
2478N/AN/A0.33s11%N/AN/A
2580N/AN/A0.33s12%N/AN/A
2682N/AN/A0.32s12%N/AN/A
2784N/AN/A0.32s13%N/AN/A
2886N/AN/A0.31s13%N/AN/A
2988N/AN/A0.31s14%N/AN/A
3090N/AN/A0.3s14%N/AN/A
3191N/AN/A0.3s14%N/AN/A
3292N/AN/A0.3s15%N/AN/A
3393N/AN/A0.3s15%N/AN/A
3494N/AN/A0.29s15%N/AN/A
3595N/AN/A0.29s15%N/AN/A
3696N/AN/A0.29s16%N/AN/A
3797N/AN/A0.29s16%N/AN/A
3898N/AN/A0.28s16%N/AN/A
3999N/AN/A0.28s16%N/AN/A
40100N/AN/A0.28s17%N/AN/A

Item acquisition
Questionmark

Upgrade paths

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

AmountIngredientGeneral
Notes
Type
9Divination card inventory iconGift of the Gemling QueenGift of the Gemling Queen card artDivination card frameGift of the Gemling Queen9Level 20 Support GemOur Lady Dialla,
as a symbol of our progress,
shines greater than all the gems.
Divination card inventory icon
random level 20 Support gemAutomatic
7Divination card inventory iconDialla's SubjugationDialla's Subjugation card artDivination card frameDialla's Subjugation7Superior Support Gem
Quality: +23%
Corrupted
A symbol of beauty and innocence
The gems corrupted her mind
Malachai corrupted her gems
All but a glimmer of
greatness lost in madness
Divination card inventory icon
random corrupted superior Support gem with 23% qualityAutomatic
8Divination card inventory iconDying AnguishDying Anguish card artDivination card frameDying Anguish8Level 19 Gem
Alternative Quality: +19%
Moribund, he gazed upon the journey taken as blood trickled down his chin. His eye closed on the city ahead that he would never call home.
Divination card inventory icon
random level 19 gem with 19% alternative qualityAutomatic
1Gemcutter's Incubator inventory iconGemcutter's IncubatorGemcutter's IncubatorAdds an incubated Quality Gem item to an equippable item
Item drops after killing # monsters
Quality GemRight click this item then left click an item to apply it. The Incubated item drops after killing a specific number of monsters.
Gemcutter's Incubator inventory icon
random superior gemAutomatic
6Divination card inventory iconThe FoxThe Fox card artDivination card frameThe Fox6Level 20 Gem"Masters of wit, strength and cunning. To survive the harsh winters, you must be like the fox."
- Ezomyte Proverb
Divination card inventory icon
random level 20 gemAutomatic
13Divination card inventory iconThe CataclysmThe Cataclysm card artDivination card frameThe Cataclysm13Level 21 Spell Gem
Corrupted
The mighty warriors traded in blows, the nimble archers in arrows, yet it was the brazen thaumaturgists who would bring catastrophe to all.
Divination card inventory icon
random corrupted level 21 Spell gemAutomatic
3Divination card inventory iconGemcutter's PromiseGemcutter's Promise card artDivination card frameGemcutter'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
Divination card inventory icon
random superior gem with 20% qualityAutomatic
1Divination card inventory iconThe VoidThe Void card artDivination card frameThe Void1Reach into the Void and claim your prize.Divination card inventory iconrandom divination card set exchangeAutomatic

Vendor reward

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

Class →WitchShadowRangerDuelistMarauderTemplarScion
Quest ↓
The Eternal Nightmare
Act 4
Petarus and Vanja
Fallen from Grace
Act 6
Lilly Roth

Mods[ | ]

NameGeneration TypeFor generated item/monster modifiers the minimum item/monster level respectively. Some generation types may not require this condition to be met, however item level restrictions may be raised to 80% of this value.StatsSpawn Weighting
The Shaper'sPrefix68Socketed Gems are Supported by Level 18 Cast While Channellinggrants_2h_support 0
attack_staff 0
staff_shaper 500
warstaff_shaper 500
default 0
The Shaper'sPrefix75Socketed Gems are Supported by Level 20 Cast While Channellinggrants_2h_support 0
attack_staff 0
staff_shaper 500
warstaff_shaper 500
default 0

Version history[ | ]

Version Changes
3.15.0
  • No longer has “Supported Triggered Spells deal 0-9% more Damage”.
  • Quality on the Anomalous Cast While Channeling Support no longer grants “Supported Skills have 0-10% increased Attack and Cast Speed”. It now grants “Supported Skills have 0-10% increased Skill Effect Duration”.
3.12.0
  • Now has alternative gem quality:[1]
Anomalous: Supported Skills have 0.5% increased Attack and Cast Speed
Divergent: Supported Skills have 0.5% increased Effect of non-Damaging Ailments on Enemies
2.5.0
  • Introduced to the game.

References[ | ]

  1. Bex_GGG (September 17, 2020). "Alternate Quality Gems in Path of Exile: Heist". Official Path of Exile Forums. Retrieved June 11, 2021.
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