[Autumn]

Earthbound Fog feels like it should apply to anything that causes movement and not just basic movement.

Sadly I think this would be a little overpowered, Earthbound Fog is mostly at it's strongest when basic movement is strong, and it can be strong through the restriction of Thunder Hooves and/or movement increases such as Talvyd or Western Wind.

Earthbound Fog has a greater effect on far reaching movement that is mostly accessible to soldiers and rogues, but less cumbersome to Duelists and martial artists, that's just the way of it. I feel as though to achieve the desired effect it would be more prudent for the user of EBF to pair it with a clumsy effect, given EBF's duration being so long.