[@Double] Umm...I can't allow that power suit uniform. We already have one hero with a power suit, 2 with a power suit is to much. I would make a mix of two different suits and allow certain parts to be armored (i.e. gauntlets, boots, shoulders and head) but the rest I would use something similar to the space suit used in the film The Martian (i.e. slimmer, more form fitting, and slightly armored chest). Because as the only villain with any kind of armor (which is essentially just the Nolan Batsuit) I wouldn't want to come up against either you, let alone both of you, even as part of a team.

Also, your only weakness is 'Extremely cold environments'. That's it. The extreme cold. I mean, the cold is kind of a given being that you're a reptile. Because let's be honest here, we're placing this city in North Carolina. Their temperatures range from the 90's to 50's thru the year unless a cold front makes it past the mountains. Maybe instead of the extreme cold have it being that cold temperatures make him slow and sluggish to the point that he eventually needs to retreat to get warm again or falls into a hibernation like state. Maybe have bright lights blind you? And if you change the uniform to what I suggested a rupture in the suit could also be a weakness if the suit was keeping your core temperature from dropping to low while out in the cold.