I think Razer from Young Justice can use both Red and Blue power rings, but I'm not sure how tha tworks.

That means you’re with both Attrocitus and Saint Walker. I’m not sure how that’s possible, because you can’t be both hopeful and angry at the same time.

I don't believe that's possible. Red operates on rage & blue operates on hope. Those 2 essentially oppose each other, in the way yellow (Sinestro Corps) is against green.