Guild Wars 2

I have them all so I can provide a few tips from my own observation.
First the thing everyone should know is that you don’t really need to dodge anything.
As long as you don’t get hit by the marionettes attacks during an attempt at breaking a chain you are perfectly fine. And of course the attempt at breaking a chain must be successful.

However there appears to be one more requirement to fulfil – you must not get downed or killed. I noticed this when doing the last achievement missing which was “Marionette Dodger” – sword attack. I noticed there is a safe zone where the sword cannot hit you if you stand there. The safe zone is right at the generator so to fully avoid the sword all that needs to be done is hug the generator.
However first time I did that I got downed by the boss and didn’t get anything but when I tried again I finished the attempt without getting downed and got the achievement. So not getting downed appears to be a requirement too.

Another thread was recently made about the same Warden that came to the same conclusion: https://forum-en.gw2archive.eu/forum/livingworld/madness/Bugged-Marionette-Dodger

This is also consistent with my dozen or so attempts at Marionette Dodger for Warden IV. Didn’t get hit by the sword – chain severed – got downed by boss – no achievement. Finally did one where I also didn’t get downed, and I get the achievement.

For those who are still trying to get this: standing in the safe spot the whole time can be kind of dangerous. The boss will regularly scream there (confusion) and put wells there (torment) and if you just stand in front of the regulator there is a good chance you’ll go down. If you kind of move around a bit near the regulator to avoid boss attacks, and dodge towards it whenever you see a sword swipe, you’ll stay alive much better.

Ohhhh! No downed… Ok, that explains a lot.