>>528737598
It's reasonably easy to get 13 crit roll.
Because all discs can have the crit substat
You just need
[1] Crit rate +2
[2] Crit rate +1
[3] Crit rate +1
[4] Crit rate +1
[5] Crit rate +1
[6] Crit rate +1

Her mindscape 1 actually gives more buffing value.