Most in def nightmare superman shield is by far the best right now. I'm bragging about it and how well he works with Atrocitus. Makes Atrocitus almost godly. And you make a good point about pricing and how he was before buffs. Because I made him work before the buffs, after he only became better after for me so I never stop playing him.
As for me having trouble. Maybe I find it easier minus the bug for ivy since the patch to handle enemys if caught on my own with other champs. Maybe it's my play style.
Idk If you ever steam but I'll love to see you in action with nightmare superman. Compare notes. Or we can set up custom match and I sit out to watch when we both have enough time for a custom gd game if you have people willing to do so. As for Zatanna. It's that range plus cooldown that gets people.
I come up against some good nightmare superman but never a threatening one. I laugh when I carry my team to a victory and come 2nd to first with kills when I focus heavily on the support. That also may be the issue. *Shrug* Who knows.