Namor cott up against level 291 4* human Torch. Is this working as intended?
Took me 2 tries with my 3-5-3 level 229 Namor. You have to deny green at all costs and save up your AP to combo your purple-green-black powers.
…or…
You can do the same strategy for every CotT when your required character is severely under spec’d/powered… use AP and match damage boosts. Throw a bunch of those on and even the weakest Namor can win.