Someone who Adam can have an all out brawl with on Earth and in space, that's for sure. As for who specifically, idk at the moment. We've seen him utilize his intelligence plenty of times already, so if this is just a one shot, then I want it to be Blue's chance for a grand and epic slug fest that's bound to get people's jaws to drop. Let him flex that brawn A LOT more so his name becomes synonymous with power like the other guys. Who knows, maybe that'll give some writers incentive to do major things with him since they won't be seeing him as just a "less popular Reed Richards type". Majority of writers tend to favor characters who can appeal to both the thinking crowd and the "I just wanna see shit blow up" crowd, and Adam can provide that balance.