| Type | Icon | Name | SP | Required | Description |
|---|---|---|---|---|---|
| B | 
|
Poison Strike 1 | 60 | — | If unit initiates combat, deals 4 damage to foe after combat. |
|
Poison Strike 2 | 120 | Poison Strike 1 | If unit initiates combat, deals 7 damage to foe after combat. | |
|
Poison Strike 3 | 240 | Poison Strike 2 | If unit initiates combat, deals 10 damage to foe after combat. | |
Cannot use: 
| |||||
Available as a Sacred Seal.
Notes[ | ]
- "If unit initiates combat" means if the user starts combat during the player phase. The unit does not need to deal damage, nor be the first to attack.
- However, if the effect is applied after combat, the unit must also survive it to fulfill this condition.
- Unlike
Pain and Deathly Dagger, Poison Strike does not activate if the initiating unit is defeated. - Poison Strike inflicts out of combat damage.
- Out of combat damage cannot reduce a unit's HP to 0.
- A foe equipped with
Embla's Ward, 
Múspellflame, 
Niðavellir Axiom, or Gold Perfection will neutralize all sources of out of combat damage except Røkkr area-of-effect Specials. - A foe equipped with Røkkr or a unit affected by En Garde will neutralize all sources of out of combat damage except area-of-effect Specials.
List of owners[ | ]
| Unit | Skill chain | |||
|---|---|---|---|---|
 | Poison Strike 1 5  | Poison Strike 2 5 | Poison Strike 3 5 | Assassin's Strike 5 |
 | Poison Strike 1 5 | Poison Strike 2 5 | Poison Strike 3 5 | Occultist's Strike 5 |
 | Poison Strike 1 3  | Poison Strike 2 3 | Poison Strike 3 4  | – |
 | Poison Strike 1 5 | Poison Strike 2 5 | Poison Strike 3 5 | Occultist's Strike 5 |
 | Poison Strike 1 3 | Poison Strike 2 4 | Poison Strike 3 5 | – |
 | Poison Strike 1 5 | Poison Strike 2 5 | Poison Strike 3 5 | Occultist's Strike 5 |
 | Poison Strike 1 3 | Poison Strike 2 4 | Poison Strike 3 5 | – |
 | Poison Strike 1 3 | Poison Strike 2 3 | Poison Strike 3 4 | – |
 | Poison Strike 1 5 | Poison Strike 2 5 | Poison Strike 3 5 | Assassin's Strike 5 |
Availability[ | ]
Summoning events
| Start | End | Event | Skill |
|---|---|---|---|
| 2018-07-05 | 2018-07-12 | Focus: Hector & Matthew's Battle | Poison Strike 3 |
| 2018-10-29 | 2018-11-06 | Focus: Heroes with Smoke Skills | Poison Strike 3 |
| 2019-02-07 | 2019-02-08 | Focus: Hector & Matthew's Battle | Poison Strike 3 |
| 2019-06-16 | 2019-06-25 | Focus: New Power | Poison Strike 3 |
| 2019-07-15 | 2019-07-27 | Focus: New Power | Poison Strike 3 |
| 2019-08-18 | 2019-08-19 | Focus: Heroes with Smoke Skills | Poison Strike 3 |
| 2020-02-14 | 2020-02-15 | Focus: Hector & Matthew's Battle | Poison Strike 3 |
| 2020-11-28 | 2020-12-07 | Voting Gauntlet: Swift-Shadow Series | Poison Strike 3 |
| 2021-05-15 | 2021-05-24 | Focus: Leila & Matthew's Battle | Poison Strike 3 |
| 2021-11-10 | 2021-11-16 | Focus: New Power | Poison Strike 3 |
| 2023-11-06 | 2023-11-17 | Focus: Tempest Trials | Poison Strike 3 |
| 2023-11-29 | 2023-12-15 | Focus: Double Mythic Heroes | Poison Strike 3 |
| 2023-12-14 | 2024-01-14 | Holiday Lessons | Poison Strike 3 |
| 2023-12-24 | 2024-01-03 | Focus: Riches or Stitches! 1 | Poison Strike 3 |
| 2024-01-30 | 2024-03-05 | Special Hero Summon (Year 7) | Poison Strike 3 |
| 2024-02-07 | 2024-03-07 | May This Last | Poison Strike 3 |
| 2024-02-29 | 2024-03-14 | Legendary Heroes - Alear | Poison Strike 3 |
| 2024-03-07 | 2024-04-07 | A Place to Rest | Poison Strike 3 |
| 2024-04-11 | 2024-04-25 | Focus: Double Special Heroes | Poison Strike 3 |
| 2024-05-17 | 2024-05-23 | Focus: Kaze & Midori's Battle | Poison Strike 3 |
| 2024-05-31 | 2024-06-14 | Legendary Heroes - Corrin | Poison Strike 3 |
| 2024-06-12 | 2024-06-28 | Double AHR: Bottom Height | Poison Strike 3 |
| 2024-06-24 | 2024-07-08 | Focus: Double Special Heroes | Poison Strike 3 |
| 2024-08-02 | 2024-09-02 | Hero Fest | Poison Strike 3 |
| 2024-08-16 | 2024-09-17 | New Heroes: In Those We Hope | Poison Strike 3 |
| 2024-09-27 | 2024-10-15 | Emblem Sigurd: Of the Holy War | Poison Strike 3 |
Distributed units
- Clarisse: Sniper in the Dark (×1)
- Clarisse: Sniper in the Dark (×2)
- Kaze: Four Heroes (×1)
- Use Heroic Grails (×20)
- Automatically (×1)
- GC: Golden Week quest (May 2018) (×1)
- GC: Golden Week quest (May 2018) (×1)
- GHB Elite 2 quest (April 2018) (×1)
- Grand Hero Battles quest (September 2017) (×1)
- Resplendent Hero (×1)
- Sacred Seals quest (August 2017) (×1)
- Three Heroes quest (January 2018) (×1)
Combat Manuals
| Start | End | Hero | Currency |
|---|---|---|---|
| 2020-06-05T03:00:00Z | 2020-07-28T06:59:59Z | Kaze: Easygoing Ninja | Divine Code: Ephemera 6 |
| 2023-02-06T00:00:00Z | 2023-03-28T06:59:59Z | Saizo: Angry Ninja | Divine Code: Ephemera 2 |
Seal acquired from[ | ]
Tempest Trials reward[ | ]
- Tempest Trials Mini: Shrouded by the Storm ( – ): 6,000 Score.
Sacred Seal Forge[ | ]
- Poison Strike 1: Create for 20 Great Azure Badge, 100 Azure Badge, 20 Sacred Coin.
- Poison Strike 2: Enhance for 60 Great Azure Badge, 200 Azure Badge, 50 Sacred Coin.
- Poison Strike 3: Enhance for 400 Great Azure Badge, 1000 Azure Badge, 100 Sacred Coin.
Trivia[ | ]
- This skill appears in Fire Emblem Fates, where it inflicts 20% of maximum hp in damage to foe after any combat the user initiates.
In other languages[ | ]
| Language | Name | Notes |
|---|---|---|
| Japanese | 蛇毒 | snake venom |
| German | Giftklinge | |
| Spanish (Europe) | Asalto tóxico | |
| Spanish (Latin America) | Asalto tóxico | |
| French | Frappe ciguë | |
| Italian | Colpo velenoso | |
| Traditional Chinese (Taiwan) | 蛇毒 | |
| Portuguese | Golpe tóxico |