Interesting proposal from Carighan regarding Vercure, I'd personally double down on this concept.

Make Vercure baseline oGCD, say at 2 x 30s recharge and like 250-350 cure potency (with a third charge maybe coming as a trait). For one, this would give RDM a useful oGCD sustain tool on similar use cases like Manaward, Radiant Aegis and Tempera Coat* (when not needed for raidwides), for another it would allow for a more practically usable version in raids without downtime.

Not to forget to mention, it would make one of RDM's typical identities of using low-tier healing spells much more usable than now.

To make up for Vercure no longer being GCD to generate Dualcast without a target, implement a spell that essentially does just that - 2.00s cast, 2.50s recast, grants Dualcast, no other effect. It basically is like Monk Formshift that way.