Ultimately, I'd like to see the whole "red" aspect take on some weight of its own, not as its own element, but some greater-than-sum-of-parts use of white with black and vice-versa. Ideally, this should be based on 'acceleration', however (and the more differently or uniquely the better) RDM can define it.

Apart from that:
- A standardized or diminishing (not counting the MP bonus of Flare) ratio of R-MP to bonus potency over the melee-Flare combo.
- Standard R-MP increments. Either 25 or 20 per cast, rather than 30 for E.Moulinet/E.Riposte, and 25 for the rest. Added frequency and flexibility.
- Manafication limitations removed. Added frequency and flexibility.
- Embolden reworked for added timing and compositional flexibility.

If allowed more significant (well, huge) changes, I'd completely interweave elements into melee work via native Enspelling.