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Cast while Channelling Support

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Cast while Channelling SupportSupport, Channelling, Spell
Icon: W
Mana Multiplier: 140%
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 totems, traps, or mines. Vaal skills and skills that reserve mana cannot be triggered.Per 1% Quality:
Supported Skills deal 0.5% increased Damage
Trigger a Supported Spell every (0.45-0.35) seconds while Channelling Supported Skills
You cannot Cast Supported Triggerable Spells directly
Supported Skills deal (0-9)% more Damage
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.png
Acquisition
Level: 38
Purchase Costs
Normal1x Orb of Alchemy
Sell Price
1x Scroll Fragment

Cast while Channelling Support is a support gem that casts linked spells while casting the linked channelling skills.

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 SupportCast On Critical Strike SupportSupport, Spell, Trigger
    Icon: &
    Mana Multiplier: 140%
    Can store 1 use(s)
    Cooldown Time: 0.50 sec
    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 and skills that reserve mana cannot be triggered.Per 1% Quality:
    Supported Skills have 1% increased Critical Strike Chance
    Supported Attacks will Trigger a Supported Spell when you Crit an Enemy
    Supported Skills deal (20-39)% 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.
    , 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 SupportCast On Critical Strike SupportSupport, Spell, Trigger
    Icon: &
    Mana Multiplier: 140%
    Can store 1 use(s)
    Cooldown Time: 0.50 sec
    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 and skills that reserve mana cannot be triggered.Per 1% Quality:
    Supported Skills have 1% increased Critical Strike Chance
    Supported Attacks will Trigger a Supported Spell when you Crit an Enemy
    Supported Skills deal (20-39)% 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.
    , 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 SupportSpell Totem SupportSupport, Totem, Duration
    Icon: T
    Mana Multiplier: 200%
    Requires Level 8Supports spell skills that do not reserve mana. Instead of using that skill, you will summon a totem that uses the skill for you.Per 1% Quality:
    1% increased Totem Placement speed
    Summons a Totem which uses the Supported Skill
    Totem lasts 8 seconds
    Supported Skills deal (35-26)% less Damage
    Spells Cast by Totem have 30% 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.
    : Cast while Channelling cannot support a skill gem that is supported by Spell Totem Support gem.
  • Detonate DeadDetonate DeadCast, AoE, Fire
    Radius: 22
    Mana Cost: (7 to 30)
    Cast Time: 0.80 sec
    Critical Strike Chance: 5.00%
    Requires Level 4Explodes an unused corpse, dealing fire damage to nearby enemies.Per 1% Quality:
    1% increased Cast Speed
    Explosion deals base Fire Damage equal to 6% of the corpse's maximum Life
    Deals (4-276) to (5-414) Fire Damage
    Damage cannot be Reflected
    Place into an item socket of the right colour to gain this skill. Right click to remove from a socket.
    Detonate Dead skill icon.png
    : Despite this skill lacking the spell keyword, Detonate Dead can be triggered with a channelled skill while linked with Cast while Channelling.
  • Lightning TendrilsLightning TendrilsSpell, AoE, Lightning
    Radius: 22
    Mana Cost: (6 to 26)
    Cast Time: 0.80 sec
    Critical Strike Chance: 6.00%
    Damage Effectiveness: 35%
    Lightning is released from your hands four times in quick succession, damaging all enemies in an arc in front of you.Per 1% Quality:
    1% increased Lightning Damage
    Deals (1-24) to (3-461) Lightning Damage
    +(0-6) to radius
    Place into an item socket of the right colour to gain this skill. Right click to remove from a socket.
    Lightning Tendrils skill icon.png
    : As with other trigger supports (Cast when Damage Taken SupportCast when Damage Taken SupportSupport, Spell, Trigger
    Icon: !
    Can store 1 use(s)
    Cooldown Time: 0.25 sec
    Requires Level 38Each supported spell skill will track damage you take, and be triggered when the total damage taken reaches a threshold. Cannot support totems, traps, or mines. Vaal skills and skills that reserve mana cannot be triggered.Per 1% Quality:
    Supported Skills deal 0.5% increased Damage
    Trigger Supported Spells when you take a total of (528-3272) Damage
    Supported Skills deal (-70-6)% more Damage
    This Gem can only Support Skill Gems requiring Level (38-70) or lower
    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 SupportCast On Critical Strike SupportSupport, Spell, Trigger
    Icon: &
    Mana Multiplier: 140%
    Can store 1 use(s)
    Cooldown Time: 0.50 sec
    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 and skills that reserve mana cannot be triggered.Per 1% Quality:
    Supported Skills have 1% increased Critical Strike Chance
    Supported Attacks will Trigger a Supported Spell when you Crit an Enemy
    Supported Skills deal (20-39)% 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.
    , etc.), Lightning Tendrils cannot be supported with Cast while Channeling due to its mock channelling nature.

Gem level progression

LevelLvl.dexterityintelligenceSpell
Cooldown
more
Damage
Exp.Total Exp.
13827400.45sN/A00
24029410.44sN/A388,734388,734
34230430.44s1%477,437866,171
44431450.43s1%583,7861,449,957
54633470.43s2%710,3592,160,316
64834490.42s2%1,355,5113,515,827
75035510.42s3%1,138,8774,654,704
85237530.41s3%1,368,2336,022,937
95438550.41s4%1,638,3387,661,275
105639570.4s4%1,956,6489,617,923
115841580.4s5%3,655,18413,273,107
126042600.39s5%3,017,32716,290,434
136243620.39s6%3,576,23219,866,666
146444640.38s6%4,231,66724,098,333
156545650.38s7%2,395,07826,493,411
166646660.37s7%8,421,06334,914,474
176746670.37s8%16,159,98351,074,457
186847680.36s8%41,170,36792,244,824
196948690.36s9%86,794,448179,039,272
207048700.35s9%157,405,063336,444,335
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

Quest reward

This skill is not given as quest reward.

Vendor reward

This skill can be bought at the listed npc vendors after completing the following quests:
ClassMarauderTemplarWitchShadowRangerDuelistScion
Quest
The Eternal Nightmare*The items are awarded for this quest when Dialla activates the device
Act 4
Petarus and Vanja
yes
yes
yes
yes
yes
yes
yes
Fallen from Grace
Act 6
Lilly Roth
yes

Version history

Version Changes
2.5.0
  • Introduced to the game.