One thing that could happen is reducing the Waning Nocturne time to 10s, so you can match that downtime with actions like Apokalypsis or Suzaku's Kick - channeled actions. Right now you can cut a little of that downtime with those, but still there's many seconds of doing nothing. Or perhaps a new action with 6-10s of cast time, rewarding you for the correct timing and good positioning by the last second of Waxing Nocturne.
Back to the OP, other than MF, the other actions I think need revision are:
- Loom: Make it instant cast so you can actually use it in actual duties and not just the Masked Carnivale.
- Chelonian Gate and Dragon Force: Make them instant cast under Tanking Mimicry. All of the tankbusters in the game are designed to be reacted with instant cast mitigators... BLU's having a cast time just makes the fight timeline annoying as heck because you can't have your GCD rolling at the time of the buster, or you'll miss it. Plus, who even remembers correct timelines for things like dungeons or old raids? If they wanted to make BLU tanking more challenging, that's defnitely not the best way to do it. Either change that or make BLU tanks less squishy. Diamondback probably could stay as it is.
- Aetherial Mimicry: Not quite the action itself, but just put 'role NPCs' close to the job hub. In fact, please give Martyn and his crew the actual building behind them for the guild!
Ice Spikes: Buff both the damage and the duration. It's a cool spell for tanks but it does have minimal impact as it is.
