Suggested by Sonic Nightmare is a pretty powerful fighter from Soul Calibur. His attacks deal some pretty serious damage and he can suck away an opponent’s energy to an extent. I don’t believe Moondragon’s mental abilities will help here much so she needs to focus on her energy projection. That’s not a bad fallback plan though as her blasts can dent steel and she can shoot them consecutively without a whole lot of effort. I would ultimately take her in the fight here. Nightmare doesn’t have the speed necessary to block all of her shots or dodge to get in close. Moondragon wins.