Cast when Stunned SupportSupport, Spell, Trigger
Icon: !
Level: (1-20)
Cooldown Time: 0.25 sec
Can Store 1 Use(s)Requires Level 38Each supported spell skill will have a chance to be triggered when you are stunned. Cannot support skills used by totems, traps, or mines. Vaal skills, channelling skills, and skills that reserve mana cannot be triggered.Per 1% Quality:1Superior2Anomalous3DivergentSupported Skills deal 0.5% increased DamageSupported Skills have 1% increased Skill Effect Duration1% chance to Trigger Supported Spells when you are Stunned, or
Block a Stunning Hit(50-69)% chance to Trigger Supported Spells when you are Stunned, or
Block a Stunning Hit
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.
Acquisition
Area level: 38Vendor Prices
Vendor Offer
1x Scroll FragmentMetadata
Item class: Support Skill Gems
Metadata ID: Metadata/Items/Gems/SupportGemCastOnStunned
Item acquisition
Icon: !
Level: (1-20)
Cooldown Time: 0.25 sec
Can Store 1 Use(s)Requires Level 38Each supported spell skill will have a chance to be triggered when you are stunned. Cannot support skills used by totems, traps, or mines. Vaal skills, channelling skills, and skills that reserve mana cannot be triggered.Per 1% Quality:1Superior2Anomalous3DivergentSupported Skills deal 0.5% increased DamageSupported Skills have 1% increased Skill Effect Duration1% chance to Trigger Supported Spells when you are Stunned, or
Block a Stunning Hit(50-69)% chance to Trigger Supported Spells when you are Stunned, or
Block a Stunning Hit
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.
AcquisitionArea level: 38Vendor Prices
| Normal | 1x Orb of Alchemy |
1x Scroll FragmentMetadata
Item class: Support Skill Gems
Metadata ID: Metadata/Items/Gems/SupportGemCastOnStunned
Cast when Stunned is a support gem that causes a linked spell to trigger when the player is stunned or blocks a stunning hit.
Skill functions and interactions[ | ]
Cast when Stunned targets the enemy which stunned the player. Spells that don't have targeting, like Discharge or Ice Nova, will be cast on the character as usual.
When the character is stunned or blocks a stunning hit, the chance to activate supported spells is rolled individually for each linked spell, then all the spells that succeeded this chance check will activate at once. Multiple copies of the same spell cannot activate at the same time, only one can, however linking multiple copies of the same spell increases the chance that at least one of them activates.
After that the global CwS cooldown occurs, which is currently 250ms. Getting stunned during cooldown time will not cause any supported spells to activate, even if you have multiple CwS groups.
Gem level progression[ | ]
| Level |  |  |  | Cast Chance | Exp. | Total Exp. |
|---|---|---|---|---|---|---|
| 1 | 38 | 27 | 40 | 50% | 0 | 0 |
| 2 | 40 | 29 | 41 | 51% | 388734 | 388734 |
| 3 | 42 | 30 | 43 | 52% | 477437 | 866171 |
| 4 | 44 | 31 | 45 | 53% | 583786 | 1449957 |
| 5 | 46 | 33 | 47 | 54% | 710359 | 2160316 |
| 6 | 48 | 34 | 49 | 55% | 1355511 | 3515827 |
| 7 | 50 | 35 | 51 | 56% | 1138877 | 4654704 |
| 8 | 52 | 37 | 53 | 57% | 1368233 | 6022937 |
| 9 | 54 | 38 | 55 | 58% | 1638338 | 7661275 |
| 10 | 56 | 39 | 57 | 59% | 1956648 | 9617923 |
| 11 | 58 | 41 | 58 | 60% | 3655184 | 13273107 |
| 12 | 60 | 42 | 60 | 61% | 3017327 | 16290434 |
| 13 | 62 | 43 | 62 | 62% | 3576232 | 19866666 |
| 14 | 64 | 44 | 64 | 63% | 4231667 | 24098333 |
| 15 | 65 | 45 | 65 | 64% | 2395078 | 26493411 |
| 16 | 66 | 46 | 66 | 65% | 8421063 | 34914474 |
| 17 | 67 | 46 | 67 | 66% | 16159983 | 51074457 |
| 18 | 68 | 47 | 68 | 67% | 41170367 | 92244824 |
| 19 | 69 | 48 | 69 | 68% | 86794448 | 179039272 |
| 20 | 70 | 48 | 70 | 69% | 157405063 | 336444335 |
| 21 | 72 | 50 | 72 | 70% | N/A | N/A |
| 22 | 74 | N/A | N/A | 71% | N/A | N/A |
| 23 | 76 | N/A | N/A | 72% | N/A | N/A |
| 24 | 78 | N/A | N/A | 73% | N/A | N/A |
| 25 | 80 | N/A | N/A | 74% | N/A | N/A |
| 26 | 82 | N/A | N/A | 75% | N/A | N/A |
| 27 | 84 | N/A | N/A | 76% | N/A | N/A |
| 28 | 86 | N/A | N/A | 77% | N/A | N/A |
| 29 | 88 | N/A | N/A | 78% | N/A | N/A |
| 30 | 90 | N/A | N/A | 79% | N/A | N/A |
| 31 | 91 | N/A | N/A | 79% | N/A | N/A |
| 32 | 92 | N/A | N/A | 80% | N/A | N/A |
| 33 | 93 | N/A | N/A | 80% | N/A | N/A |
| 34 | 94 | N/A | N/A | 81% | N/A | N/A |
| 35 | 95 | N/A | N/A | 81% | N/A | N/A |
| 36 | 96 | N/A | N/A | 82% | N/A | N/A |
| 37 | 97 | N/A | N/A | 82% | N/A | N/A |
| 38 | 98 | N/A | N/A | 83% | N/A | N/A |
| 39 | 99 | N/A | N/A | 83% | N/A | N/A |
| 40 | 100 | N/A | N/A | 84% | N/A | N/A |
Strategy[ | ]
Versus 
Cast when Damage Taken SupportCast when Damage Taken SupportSupport, Spell, Trigger
Icon: !
Level: (1-20)
Cost & Reservation Multiplier: 250%
Cooldown Time: 0.25 sec
Can Store 1 Use(s)Requires Level 38Each supported spell skill will track damage you take, and be triggered when the total damage taken reaches a threshold. Cannot support skills used by totems, traps, or mines. Vaal skills, channelling skills, and skills with a reservation cannot be triggered.Per 1% Quality:1Superior2Anomalous3DivergentSupported Skills deal 0.5% increased DamageSupported Skills have 1% increased Skill Effect DurationSupported Skills require 1% reduced amount of Damage taken to TriggerTrigger 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 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.
Cast when Stunned has several advantages, which may tip its balance in its favour, depending on your character's build:
- Characters who use energy shield or Mind over Matter will typically have more hit points than their Life pool (for purposes of stunning). This also results in more stuns per damage taken.
- Unlike
Cast when Damage Taken SupportCast when Damage Taken SupportSupport, Spell, Trigger
Icon: !
Level: (1-20)
Cost & Reservation Multiplier: 250%
Cooldown Time: 0.25 sec
Can Store 1 Use(s)Requires Level 38Each supported spell skill will track damage you take, and be triggered when the total damage taken reaches a threshold. Cannot support skills used by totems, traps, or mines. Vaal skills, channelling skills, and skills with a reservation cannot be triggered.Per 1% Quality:1Superior2Anomalous3DivergentSupported Skills deal 0.5% increased DamageSupported Skills have 1% increased Skill Effect DurationSupported Skills require 1% reduced amount of Damage taken to TriggerTrigger 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 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. , Cast when Stunned does not suffer a damage penalty at any level. However, it is usually still ineffective for damage-dealing purposes. - Most importantly, Cast when Stunned does not have a limit on active skill level. This makes it a better choice for level-dependent skills, since the trigger damage for Cast when Damage Taken SupportCast when Damage Taken SupportSupport, Spell, Trigger
Icon: !
Level: (1-20)
Cost & Reservation Multiplier: 250%
Cooldown Time: 0.25 sec
Can Store 1 Use(s)Requires Level 38Each supported spell skill will track damage you take, and be triggered when the total damage taken reaches a threshold. Cannot support skills used by totems, traps, or mines. Vaal skills, channelling skills, and skills with a reservation cannot be triggered.Per 1% Quality:1Superior2Anomalous3DivergentSupported Skills deal 0.5% increased DamageSupported Skills have 1% increased Skill Effect DurationSupported Skills require 1% reduced amount of Damage taken to TriggerTrigger 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 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. increases rapidly with level.
Item acquisition
Upgrade paths
This item can be acquired through the following upgrade paths or vendor recipes:
| Amount | Ingredient | General Notes | Type |
|---|---|---|---|
| 9 |  Gift of the Gemling Queen  Gift 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 gem | Automatic |
| 7 | Dialla's Subjugation Dialla's Subjugation7Superior Support GemQuality: +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 with 23% quality | Automatic |
| 8 | Dying Anguish Dying Anguish8Level 19 GemAlternative 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. | random level 19 gem with 19% alternative quality | Automatic |
| 1 |  Gemcutter's IncubatorGemcutter's IncubatorAdds an incubated Quality Gem item to an equippable itemItem drops after killing # monstersQuality GemRight click this item then left click an item to apply it. The Incubated item drops after killing a specific number of monsters.  | random superior gem | Automatic |
| 6 | The Fox The 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 gem | Automatic |
| 13 | The Cataclysm The Cataclysm13Level 21 Spell GemCorruptedThe 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 | Gemcutter's Promise Gemcutter's Promise3Superior GemQuality: +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 with 20% quality | Automatic |
| 1 | The Void The Void1Reach into the Void and claim your prize. | random divination card set exchange | 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 | ✓ | ||||||
Unique items[ | ]
| Item | | Stats | ||
|---|---|---|---|---|
Night's Hold Night's HoldBlack Maw TalismanTalisman Tier: 1Requires Level 12Has 1 Socket+2 to Level of Socketed Gems Socketed Gems are Supported by Level 10 Added Chaos Damage Socketed Gems are supported by Level 10 Blind Socketed Gems are supported by Level 10 Cast when Stunned CorruptedIn the light of Solaris, the shadows cower and hide. But every night they gather and grow, and all but the strong and the stupid seek shelter from their grasp until daybreak.  | 12 | Has 1 Socket+2 to Level of Socketed Gems Socketed Gems are Supported by Level 10 Added Chaos Damage Socketed Gems are supported by Level 10 Blind Socketed Gems are supported by Level 10 Cast when Stunned Corrupted | ||
The Hungry Loop The Hungry LoopUnset RingRequires Level 70Has 1 SocketConsumes Socketed Uncorrupted Support Gems when they reach Maximum Level Can Consume 4 Uncorrupted Support Gems Has not Consumed any Gems <Consumed support gem modifier>Be careful where you put your finger.  | 70 | Has 1 SocketConsumes Socketed Uncorrupted Support Gems when they reach Maximum Level Can Consume 4 Uncorrupted Support Gems Has not Consumed any Gems
|
Version history[ | ]
| Version | Changes |
|---|---|
| 2.4.0 |
|
| 1.2.2 |
|
| 1.0.2 |
|
| 1.0.0 |
|
Cast when Stunned Support
