Just random thoughts here:

Reprint this card I guess:



Edit: there's lots of dream cards in blue.

Blue should be about aspiration type of dream. should have a lot of draw mechanics.

Black should have a lot of Nightmarish theme; discard type cards.

There needs to be a Red card call "Feverish Dream"

I could actually see a setting where a plane exist between Dreams and Reality. White/Red/Green wants to wake the plane to reality while Blue/Black/Green wants to keep the Plane in it's dream state.