Yes, he mainly uses it for Blood-prophecy to see the future, and I think it played a part in his creation of the Red Lantern Battery and rings via some blood ritual.
But he used it, and his blood, to mind control a legion of Man-hunters by paining "x" on their heads and doing some ritual. Yes, Atrocitous is not only is the Red Lantern Leader but controls an army of man-hunters.
He used magic to battle the guardians and manhunters though with no ring.
So if Thor can't use abilities he has not shown for the last 20+ years I guess we can't give Atrocitus Battle Magic??? (this is a joke btw :] )