How to use momentum mode?

[Breoc]

I tried googling this, but can't figure out how to make Momentum mode come up during the battles. I am using an xboxone controller. Can anyone give some advice?

[lisa]

I am on a keyboard, and I can't get it to work either. I reread the instructions, double-checked the key it's bound to, but can't get it to work.

[Donnie_Darknuts]

This was posted on Gamefaqs by robofish_13.

https://gamefaqs.gamespot.com/ps4/168682-i-am-setsuna/answers/458123-how-do-you-activate-momentum-singularity

To activate a Momentum, you must time the [] square or Y button before your attack connects but after it is launched. Example being Endir uses Cyclone, you must press the button before his attack animation is finished and it can be pressed as soon as the attack has started (when the attack name is displayed). To do this you must have one shining marker on top of your momentum sphere next to your HP. This can be done on normal attacks too.

If pressed too early, late or frequently you will miss the trigger and no bonus momentum will activate.
The benefit of momentum skills are as follows...
1. Extra attack damage an AoE effect or buff/debuff chance
2. Momentum kill for extra item drops
3. Chance for your Talisman to pass over a trait onto the Spritnite you wield.

Take care on which talismans you equip and what bonuses they offer, you can customise your Spritnite this way with extra buffs or bonuses and a Spritnite can hold more than 1 attribute.