Cast while Channelling Support
Cast while Channelling SupportSupport, Channelling, Spell, Trigger
Icon: WRequires 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 DamageSupported Skills have 0.5% increased Attack and Cast SpeedSupported Skills have 0.5% increased Effect of non-Damaging Ailments on EnemiesTrigger a Supported Spell every (0.45-0.35) seconds while Channelling Supported Skills
You cannot Cast Supported Triggerable Spells directly
Supported Triggered Spells deal (0-9)% more DamageThis 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.
Acquisition
Level: 38Purchase Costs
Sell Price
1x Scroll FragmentMiscellaneous
Item class: Support Skill Gems
Metadata ID: Metadata/Items/Gems/SupportGemCastWhileChannelling
Icon: WRequires 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 DamageSupported Skills have 0.5% increased Attack and Cast SpeedSupported Skills have 0.5% increased Effect of non-Damaging Ailments on EnemiesTrigger a Supported Spell every (0.45-0.35) seconds while Channelling Supported Skills
You cannot Cast Supported Triggerable Spells directly
Supported Triggered Spells deal (0-9)% more DamageThis 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.

Level: 38Purchase Costs
Normal | 1x Orb of Alchemy |
1x Scroll FragmentMiscellaneous
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.
Contents
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 SupportTrigger, Support, Spell
Icon: &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 ChanceSupported Skills deal 1% more Attack DamageSupported Skills have 0.5% increased Attack SpeedSupported 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 directlyThis 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 SupportTrigger, Support, Spell
Icon: &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 ChanceSupported Skills deal 1% more Attack DamageSupported Skills have 0.5% increased Attack SpeedSupported 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 directlyThis 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, Spell, Totem
Icon: T
Mana 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 (35-26)% less Damage
Spells Cast by Totem have 30% less Cast SpeedThis 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.
Gem level progression
Level | ![]() | ![]() | ![]() | Casting Interval | more Damage | Exp. | Total Exp. |
---|---|---|---|---|---|---|---|
1 | 38 | 27 | 40 | 0.45s | N/A | 0 | 0 |
2 | 40 | 29 | 41 | 0.44s | N/A | 388,734 | 388,734 |
3 | 42 | 30 | 43 | 0.44s | 1% | 477,437 | 866,171 |
4 | 44 | 31 | 45 | 0.43s | 1% | 583,786 | 1,449,957 |
5 | 46 | 33 | 47 | 0.43s | 2% | 710,359 | 2,160,316 |
6 | 48 | 34 | 49 | 0.42s | 2% | 1,355,511 | 3,515,827 |
7 | 50 | 35 | 51 | 0.42s | 3% | 1,138,877 | 4,654,704 |
8 | 52 | 37 | 53 | 0.41s | 3% | 1,368,233 | 6,022,937 |
9 | 54 | 38 | 55 | 0.41s | 4% | 1,638,338 | 7,661,275 |
10 | 56 | 39 | 57 | 0.4s | 4% | 1,956,648 | 9,617,923 |
11 | 58 | 41 | 58 | 0.4s | 5% | 3,655,184 | 13,273,107 |
12 | 60 | 42 | 60 | 0.39s | 5% | 3,017,327 | 16,290,434 |
13 | 62 | 43 | 62 | 0.39s | 6% | 3,576,232 | 19,866,666 |
14 | 64 | 44 | 64 | 0.38s | 6% | 4,231,667 | 24,098,333 |
15 | 65 | 45 | 65 | 0.38s | 7% | 2,395,078 | 26,493,411 |
16 | 66 | 46 | 66 | 0.37s | 7% | 8,421,063 | 34,914,474 |
17 | 67 | 46 | 67 | 0.37s | 8% | 16,159,983 | 51,074,457 |
18 | 68 | 47 | 68 | 0.36s | 8% | 41,170,367 | 92,244,824 |
19 | 69 | 48 | 69 | 0.36s | 9% | 86,794,448 | 179,039,272 |
20 | 70 | 48 | 70 | 0.35s | 9% | 157,405,063 | 336,444,335 |
21 | 72 | 50 | 72 | 0.35s | 10% | N/A | N/A |
22 | 74 | N/A | N/A | 0.34s | 10% | N/A | N/A |
23 | 76 | N/A | N/A | 0.34s | 11% | N/A | N/A |
24 | 78 | N/A | N/A | 0.33s | 11% | N/A | N/A |
25 | 80 | N/A | N/A | 0.33s | 12% | N/A | N/A |
26 | 82 | N/A | N/A | 0.32s | 12% | N/A | N/A |
27 | 84 | N/A | N/A | 0.32s | 13% | N/A | N/A |
28 | 86 | N/A | N/A | 0.31s | 13% | N/A | N/A |
29 | 88 | N/A | N/A | 0.31s | 14% | N/A | N/A |
30 | 90 | N/A | N/A | 0.3s | 14% | N/A | N/A |
31 | 91 | N/A | N/A | 0.3s | 14% | N/A | N/A |
32 | 92 | N/A | N/A | 0.3s | 15% | N/A | N/A |
33 | 93 | N/A | N/A | 0.3s | 15% | N/A | N/A |
34 | 94 | N/A | N/A | 0.29s | 15% | N/A | N/A |
35 | 95 | N/A | N/A | 0.29s | 15% | N/A | N/A |
36 | 96 | N/A | N/A | 0.29s | 16% | N/A | N/A |
37 | 97 | N/A | N/A | 0.29s | 16% | N/A | N/A |
38 | 98 | N/A | N/A | 0.28s | 16% | N/A | N/A |
39 | 99 | N/A | N/A | 0.28s | 16% | N/A | N/A |
40 | 100 | N/A | N/A | 0.28s | 17% | N/A | N/A |
Item acquisition
Upgrade paths
This item can be acquired through the following upgrade paths or vendor recipes:
Amount | Ingredient | General Notes | Type |
---|---|---|---|
9 | ![]() ![]() ![]() as a symbol of our progress, shines greater than all the gems. ![]() | random level 20 Support gem | Automatic |
7 | ![]() ![]() ![]() Quality: +23% CorruptedA 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 |
6 | ![]() ![]() ![]() - Ezomyte Proverb ![]() | random level 20 gem | Automatic |
13 | ![]() ![]() ![]() CorruptedThe 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 gem | Automatic |
3 | ![]() ![]() ![]() 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 |
Vendor reward
This item can be bought at the listed NPC vendors, after completing the following quests:
Class → | Witch | Shadow | Ranger | Duelist | Marauder | Templar | Scion |
---|---|---|---|---|---|---|---|
Quest ↓ | |||||||
The Eternal Nightmare Act 4 Petarus and Vanja | ✓ | ||||||
Fallen from Grace Act 6 Lilly Roth | ✓ |
Mods
Name | Generation Type | ![]() | Stats | Spawn Weighting |
---|---|---|---|---|
The Shaper's | Prefix | 68 | Socketed Gems are Supported by Level 18 Cast While Channelling | grants_2h_support 0 attack_staff 0 staff_shaper 500 warstaff_shaper 500 default 0 |
The Shaper's | Prefix | 75 | Socketed Gems are Supported by Level 20 Cast While Channelling | grants_2h_support 0 attack_staff 0 staff_shaper 500 warstaff_shaper 500 default 0 |
Version history
Version | Changes |
---|---|
2.5.0 |
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