Heaton
A Soul in the Purgatory
Nightmare's punisher moves are VERY effective, even if you read them many of them are nearly impossible to avoid.
If you're getting hit with a punisher, you CANNOT avoid it, period. That's how it goes for all punishers. They're there to punish you for making a mistake. In Nightmare's case, he generally has shitty block punishment but extremely good whiff punishment, and whiff punishment is ALWAYS extremely costly. If you keep getting hit with high damage whiff punishers, then the problem is you, not Nightmare.