Powers
Because of his unusual genetic heritage, Namor is unique among both ordinary humans and Atlanteans; he is sometimes referred to as "Marvel's first mutant," because, while the majority of his observed superhuman powers come from the fact that he's a hybrid of Human and Atlantean DNA, his ability to fly can't be explained by either side. (Atlanteans are an off-shoot of "baseline" humanity.) Namor has superhuman strength and is the strongest Atlantean ever, with a lift capacity of 85 tons (Source: Official Marvel.com Website, 2005:
http://www.marvel.com/universe/index.htm ) and slightly more while submerged. Official Marvel Handbook, Avengers 2004 lists his strength level as 100 tons. Namor has lifted more than this numerous times, though. (The Feat List of the Sub-Mariner)
However, Namor's strength requires frequent submersion in water. The longer he's away from a water source, the weaker he becomes over the long run, though even an extended period on dry land does not result in death, as it would for an Atlantean. Unlike Atlanteans, who have gills, Namor breathes with his lungs like a human, though his lungs contain special alveoli that extract oxygen from water, so Namor can also breathe underwater. Namor also possesses vestigial "wings" on both of his ankles, by which he seems to fly. Since the "wings" by themselves could never carry Namor, much less anything else, it has been speculated that he uses the wings for steering and flies in some other manner, perhaps by telekinesis. In the past, he has exhibited the ability to generate a massive electric charge, much like an electric eel. He uses this in an offensive capacity. This is a seldom-used power and appears to require a long recharge time between uses. This power has sometimes been portrayed as an ability to absorb and redirect electricity, rather than generating the charge himself.