Saki: Light Grinding or Not

Saki can be joined in the course of IDA School II and soon promoted to 5 star Another Style in IDA School II After Incident.

Her Light points can be increased in Another Dungeon, Mayu's Dream World. The problem, however, is that there is no chance to acquire Chant Scripts in treasure boxes nor Clauses and other Tomes as completion rewards in Another Dungeons related to side stories.

Saki in my deck has only 3 in her Light point. The main reason of it is that she has a high SPD (192) which, with some budge adjustment, makes her cast magic attacks and Jotunn Effect* before enemy' moves. That is all I expect from her. So I chose to concentrate on raising story characters' Light/Shadow points.

*Jotunn Effect is a unique skill, +50% Fire resistance buff + all-area Water magic counterattack (L) when she is hit by a Fire attack.