haven't tried her zeal yet, she is just in sube team training for the time beinf, but i'll see it once the event is here.
not sure about formation as i haven't used my thunder team for a while, i guess that i'll go with raiko, tyr, brahma and ramiel so i can use all my thunder SSR along ramiel that can dizzy her and help to increase burst gauge.
also, tyr also have A frame debuff so maybe a different skill will be better instead of ambush?
and yes, it's 25K regeneration, half of what pheonix had back then