Hello,

Does Earth Power require you to not wear boots in order to work? From the helpfile:

'EARTH POWER'
A svirfneblin invoker may choose this edge, which allows them to cast most
spells with greater power so long as they are in physical contact with the
Earth.

SEE ALSO: EDGES

Thank you in advance for your answer.

I'd bet it has less to do with boots and more to do with fly.

You are correct.