in antarctic vibranium this is probably a stalemate, maybe. depends a bit on how large the bf is. the range of effect of large amounts of vibranium is pretty big. if the bf is big enough ultron could avoid him, but i'm not sure he could hurt creel. the encephalo ray affects the brain, so MAYBE that would work still? it would be his only option, other than being smart enough to trick creel into taking another form.