So are you contemplating drawing a (bat-like?) Susanoo Fakemon (to represent Pokemon "Gray", I guess) for another contest or would you just settle on having Stalyumi and Amaress being counterparts and duking it out?
Hey! Congrats again on your BW 'Fakemon' Legendaries, Stalyumi and Amaress! Here's a song I came across a few weeks ago that I think would complement your Pokemon during a wild Pokemon battle facing either of them:
And if you ever do a Susanoo 'sibling' Pokemon, I'd suggest doing
either a jet/airplane-based, helicopter-based or a bird-based Pokemon (sorry about the odd suggestions and I know birds are sort of overdone for legends; I was just trying to think of something related to storms/wind!)
You can always opt for Dragon as well or possibly do a Bug-type (Hercules, Goliath, or Scarab beetle?) Legendary Pokemon (which would be a first)! Actually, doing a bat legendary might work out, as only the Zubat line is based off of it (though Stalyumi seems similar in origin to the Ponyta line, and Amaress resembles the 3 Dogs as well).
Furthermore, bats are the only animals with wings that, from my experience, are not overused like birds and flying bugs these days... You could experiment with that in the future... Just my 2 cents... :D