Pulling off Magilou's 3rd Mystic Arte [Tales of Berseria]

It's not exactly hard per say,... its just that Magilou nukes everything before it has a chance.

0:37 to skip strategy set-up
1:50 for the activation
3:55 for me totally whiffing Aqua Split and just being stupid at the game

Chaos Mode | Lvl 88 | +10 Total Enhancements

So the timing for activating the mystic arte can be a bit tough and usually it kills everything so there's nothing left to hit. Class 4 Zone- Fiend Quarter is a pretty good place to pull it off if you don't want to utilize the Mystic Arte chain method as there's a good plethora of reinforcement enemies that cast spells. Magilou's counter spells activate in the order listed in her Artes menu. So keep that in mind when you know Tetra Detonator will be coming next and make sure to hold the Mystic Arte button as soon as you see the arte's name appear on the top of the screen.