Yea... WHM atma are somewhat lacking, but there are good ones out there. It just depends on your play style. Ideally, you want to cap Cure potency at 50%. If you can get 40% potency without a Noble's or other body piece then you can equip Atma of the Rescuer or Atma of Harmony to get the last 10% and make Orison Bliaut your cure body. Atma of the Minikin Monstrosity is on all the time since it's the best Refresh atma. Other nice atmas are: Allure (nice boosts to many areas), Matriarch (mainly for fast cast), Apocalypse (Quick magic and perma-RR). There are a lot of others to choose from to fit your play style. Personally, due to my lack of selection and need for procs, I use Voracious Violet (I have to lock myself into Surya Staff +2) for Regain, Minikin, and Matriarch. It's nowhere near the best but it serves its purpose. Once I get Orison's Bliaut I'll switch one to Atma of Harmony.