>>535282404
>Get 5 gluttony resource to activate her passive first (which is how you generate Star stacks for S3-2)
>Always have her Assist Defense activated (either by using counter or S3) every turn
>Leave one unopposed attack against a non-Maost ally (who's also not using a defense skill)
>Maost will use her Assist Defense to use her Power Block on the first (most of the time) and then S3-2 from then onward against that unopposed attack
Also pay some attention to her Star stack count. It starts changing to S3-2 the second time because she gained 10 stacks from 2 triggers of Assist Defense.