Nightwing was the unexpected result of a WWII soldier being experimented on along with a golden eagle, when the two were fused, Nightwing was born, with actual wings that could take him straight to the Ozone layer, almost into space, he can breath outside of Earth's atmosphere for 5 straight days, breath underwater for 10 minutes instead of 7, survive a nuclear bomb blast with little to no damages, survive being hit by a train with some damages, can survive being lit on fire and being cooked in the worlds biggest oven possible, with a decent amount of scars, the one thing he can do that no other hero can, make breakfast without going to the store, he lays egg bombs sometimes