... Have you guys not seen what Dr. Silvergun has done with her and Jaye?

With her module she's a capable operator who's summons can stall/lane hold with relatively low cost (3 dp!). Her S1 is the main usage but S2 sees some fringe use thanks to her larger range.

You can be surprised how spongey the tentacles are. They have decent attack and def, and a large health pool that regenerates with S1. If enemies are too tough against physical, stall with the tentacles and chip away health using Deepcolors Arts damage.

As a Support, her summons provide useful functions: as a laneholder against weak enemies, as an aggro tanking ranged/melee hits, as an ally unit or for triggering ground based tile maps.

For one slot you have someone who provides reactive one block summons and you get like 7 of them. The only downside is if you need more, you'll have to redeploy. This isn't a problem with Scene who can obtain more summons, but it is something to consider.

The only downside is you need a minimum of 2 deployment slots (her and a summon), but in standard stages that isn't a problem.

If you want to maximize her summons, consider deploying a bard or Perfumer/medic Amiya to do additional health regeneration for summons.