

The basic trick is to find a high health or indestructible container. This is done by using the telekinesis skill which lets you move and pick up items of any weight.
DIVINITY ORIGINAL SIN 2 DEATHFOG MACHINE FULL
Barrelmancy Method: Barrelmancy is an alternative, game breaking way to play the game where you use a container full of heavy things like fire and water barrels to crush enemies before they engage in combat or even in combat (use the Executor perk to make this your main form of damage in combat). They will stay in the conversation until you deal with them but might disappear once you escape Fort Joy (into the swamps), so maybe don't wait that long for safety. In any case, there is a ladder to the right side of where the characters are talking so use sneaking to avoid talking to the characters and just leave them until you're ready to deal with them. The other alternative is to wait to confront Dallis until you're much higher level though I haven't tried this method.

There are two cheesy methods for doing this (one with a deathfog barrel and one with what's called barrelmancy). This cannot be earned when you later confront Dallis at the end of Act 1. If they have already left, you'll need to start up a new character to go for the achievement. To earn this achievement, you will need to attack Dallis or Alexander during this dialogue sequence. When you first get to Fort Joy after the tutorial on the ship you will be greeted with a dialogue between Dallis, Alexander, and a Lizard.
