[quote=Jabber]
Making use of dials would be fine but you'll have to explain where you got them. Also, it was mentioned in the manga that cloud-based dials only work in the White Sea.
[/quote]

Hmm that makes using the Milky and Eisen dials impossible. That leads a few other combos left that would make sense. Jet dials seem to leave behind a cloud of sorts. Yet, the flame and water dials are still possible. They would form a mist or fog when used together. But, both have limited development in combat. One of the other ways to have it make sense would be getting the smoke logia but that would be a bit over powered.