What an RDM can specialise themselves in (dia 3, slow 2, paralyze 2) a WHM can do the lower tiers and land them perfectly and that's good enough. The only outstanding spell an RDM has is phalanx 2 and that only has situational uses like FCs and certain NMs, even then you can do without if you got a good WHM who can keep up with the heals and the tanks are using regen atmas. RDMs are no longer a supporting class since their cures max at cure 4 and draws a tonne of hate, and their refreshes are not needed in Aby due to refresh abyssites. They can proc some yellow spells but not any of the -ga or AM ones. In short RDMs are an unnecessary class, thanks to Abyssea. Cheers SE for destroying the class that I enjoyed the most.