Deep dungeon for BLU only

[Saraide]

I'd love a unique DD where BLU begins from level 1 and 1 spell, and learns more only through special adds and leveling up. Learning from levels need not be utterly random - they could be split among "defensive"/"offensive"/"utility" and BLU learns one among each group at milestones. Additional system based on currency that allows buying of spells could also be a thing.

I would love that. A DD like that would probably profit from having elemental weaknesses and strengths on enemies like blu carnival has. This would give justification to all the different ~200 potency spells. In terms of length it probably on the shorter side imo. You could make a proper roguelike game mode with BLU.