Concussion effects guide in Seven Knights Re:Birth. See Concussion status effect, heroes with Concussion ability, immunity resistance and Concussion application rate in 7K Rebirth.
Table of Contents
Concussion Effects
Unable to Act While Active
Concussion is a type of debuff that occurs during battle, and heroes inflicted with it will be unable to act while it's active. The inability to act from Concussion lasts for a set number of turns or until the Concussion debuff is removed.
Effect Duration Extends on Hit with Attacks of 2 or More Hits
When an attack with 2 or more hits lands on a hero with Concussion, the duration is extended by 1 turn. The maximum duration extension is up to the initial number of turns applied when the Concussion state was first inflicted.
Concussion Counters
Concussion Immunity
There are currently no heroes with Concussion Immunity. In the past, there was an instance where Sarah was updated to be the first hero with Sleep Immunity, so it's possible that Concussion Immunity will be added to new or existing Rare Heroes in the future.
Crowd Control Immunity
With a Crowd Control Immunity buff, you can nullify debuff effects that would make the target unable to act. It's highly versatile as it can negate multiple debuff effects.
Can Also Be Granted with Orchestrator Equipment
You can activate a Crowd Control Immunity effect with the 4-Set Effect of Orchestrator. Orchestrator Set equipment drops in the Iron Devourer Raid.
![]() | The effect duration is short, so it should be considered primarily for PvP! |
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Increase Effect Resistance

By increasing Effect Resistance, you can have a chance to resist debuff effects from enemies. Although it doesn't guarantee resistance, it's highly versatile as it can also resist other types of debuffs.
Debuff Removal

When Debuff Removal is activated, you can remove a specified number of debuffs from the target hero. Be aware that you can only remove debuffs with a black background icon; debuffs with a red background cannot be removed.
Make Enemy Attacks Miss
Status effects are not applied on attacks that Miss. By using skills that cause enemy attacks to Miss, you can sometimes avoid Concussion.
Examples of Ways to Cause a Miss
1. | Inflict |
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2. | Use the |
Heroes Who Can Inflict Concussion
Name | Detail |
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![]() | - Can be obtained as a Guild War reward - Can immobilize enemies for an extended duration with Concussion - Best paired with Heroes who have multiple attacks - Unable to Recover and Barrier on incapacitation are useful |
How to Increase Concussion Infliction Rate
Equip the Spellweaver Set
Set | Set Effect |
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![]() | 2-Set: Effect Hit Rate 17% 4-Set: Effect Hit Rate 35% Effect Probability 10% |
You can activate Set Effects by equipping weapons and armor with matching icons in the bottom left. Spellweaver set equipment drops from the Iron Devourer Raid.
![]() | To activate the 4-Set Effect, you need to increase the equipment slots of a Hero through Ultimate Enhancement. |
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Increase Effect Probability

Since Concussion is a type of debuff, you can increase the infliction rate by including heroes with Effect Probability Boost in your party. Consider this if your strategy revolves around status effects.
List of Heroes with Effect Probability Boost
Name | Detail |
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![]() | - A powerful healer with an all-ally Revive and Guts. - Also recommended for Death parties. - Good to pair with a debuffer. - Equipping HP-boosting equipment is recommended. - Cannot be obtained from Summon. |
Increase Effect Hit Rate

Similar to Effect Probability is Effect Hit Rate. This effect is strictly a countermeasure against opponents with high Effect Resistance.
If the opponent's Resistance is 0%, this will not increase your success rate, but it becomes a necessary effect when you want to inflict debuffs on an opponent with high Resistance.
Related Seven Knights Re: BIRTH Articles
Ranking Articles
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