The Undertow Vigor gives Booker the power to attract or repel the enemies. When cast, all the enemies in front are knocked and pushed them away from Booker. Charging the Vigor pulls the enemies towards Bookers and also leaves them in air temporarily for short moment of time, leaving them vulnerable to attacks. Releasing the button results in them falling to the floor, but while they are suspended in air they take additional damage from all the weapons attacks.
| Location | |
|---|---|
| The office before the belltower in the Factory. | |
| Cost | |
| 31% of base Salts (Cast / Push) 62% of base Salts (Charged / Pull) | |
| Upgrades | |
| Undertow Aid | Increases the number of enemies Booker can pull at one time. |
| Undertow Boost | Doubles effective range. |
| Combination Attacks | |
| Undertow + Shock Jockey | Using Undertow for pull and using Shock Jockey afterwards, results in an instant kill because enemies are electrocuted. |
