I like where the new WSs are going but I'm still really sore about no Sanguine Blade and no other Elemental WS that RDM can actually use it's MAB on for single targets. In some ways, Requiescat will replace the need for magical damage WS to get around high defense, but I still don't see why you wouldn't want to give RDM an elemental WS to use all of the MAB gear they can collect.
I would advocate changing Death Blossom from a Physical WS to an Elemental WS. Keep it's SC properties the same but change the effect TP plays on its damage output. You can change it to 'Damage varies with TP.' and give it Uriel Blades Scaling. OR you can keep the Magic Evasion down and give it a decent multiplier like 3.0 ~ 4.0 and increase the Magic Evasion down to at least -30 and stack with Ninjitsu debuffs.
Murgleis is perfectly setup to be used for elemental WS with it's high magic accuracy and all of it's aftermath effects are beneficial as well to an Elemental WS that uses MAB as a factor. Make the Murgleis the pinnacle of RDM's elemental WS use just like the Almace does for Physical WSs.