I also thought about my Final Debuff Team the last few days. Since i got a lot of Debuff Girls via luck i won't change the team that much anymore.
I will probably use:
GoldenLace
Foxy (miko)
OnciBride
Aconite
Kerria
That Team would give me x1,76 Skill Act, 65% Debuff, Two Girls with life leech and another Dodge Girl in form of Golden Lace. Golden Lace could especially come in handy for those Aqua Shadow Maps where Single Target Nukers (Mei/Ume and Sakura) are present.
The drawback of that team: Only two Elements.
Only Girl missing: Aconite
I would love if they make her available via exchange shop in the near future...