Coven Down

Coven Down is a 10-point The Wellspring triumph: on the Attack day, defeat all 3 Witches within 20 seconds of each other.

How to complete

1. Run The Wellspring: Attack (the Attack rotation, not The Wellspring: Defend).
2. In the final boss fight, you charge three plates to break the boss's shield. Named Witches spawn in the arena and killing them breaks the shield again.
3. The three Witches must all be dead within 20 seconds. Let them accumulate, then kill them together with your fireteam, rather than one at a time.

Seal

It is not one of the required triumphs for the Gumshoe seal.