Encircling Fissure

Encircling Fissure prevents all combat damage that would be dealt by any creature controlled by the target opponent, even if that creature wasn’t on the battlefield or wasn’t a creature as Encircling Fissure resolved.

Awaken doesn’t give the land you control a color. As most lands are colorless, in most cases the resulting land creature will also be colorless.

If a spell with awaken has multiple targets (including the land you control), and some but not all of those targets become illegal by the time the spell tries to resolve, the spell won’t affect the illegal targets in any way.