As mentioned previously, it's best to use Namor to lock down choke points. You can use your Trident of Neptune to force enemies into a tight corner and then use Aquatic Dominion to spawn Monstros.
Neptune has largely appeared in stories involving Namor, especially those in which the Olympian's fabled Trident has a part of its own to play. Namor #7 is on sale now from Marvel Comics.
Namor has been a rather intense ride over its eight issue run. Writer Jason Aaron is no stranger to the character, having ...