Slow always lasted for 7 stacks, and the abilities were again not in my favor. + Curse, even with a black orb, didn't seem to affect the Necromancers, or I wouldn't believe that it provides mass resistance.
You can't curse or blind Necromancers, and it doesn't work with the orb either. And slow for 7 stacks means that everything affects you, including the orb. There's no resistance on the battlefield.
