Board Thread:General Discussion/@comment-128.151.150.18-20161013025548/@comment-128.151.150.18-20161013071349

About Cinder - although it is possible for her to use both Fire and Lava, you'd think she's still using one as an affinity. As for the fire eruptions, she seemed to summon the flames out of a portal (a small part of my own theory for her Semblance).

I thought Mercury was using Steam at first too, but because of the whole "winged sandal" symbolism surrounding his design, I'm more inclined to say it's Wind Dust, as another [lamentable] inconsistency in which Wind is now White instead of Green.