oke maybe not the best idea out there but what about Mifune earth main Kisame Jigo ?
the idea would be kisame and mifune will get 60% buff which is not much but then jigo can heal Kisame for every unite that dies since he recover chakra not best combo they have but with mifune mystery you can take out their buffs and almost clean any clones on the field so kisame can go ham :v.. but i do believe that Mifune is best with lightning main yet still can be used with earth i think perfectly.

I am not sure about this but thanks for the help c: