I get it about Marquis, yeah. Despite getting an Interlude out him, we don't know a ton about him. Certainly not enough for a skill pyramid.
Narwhal, however, seems to just be Incite Effect (Forcefields, With Discipline)(Range, Physical, Potent, Protective, Restrictive, Mass, Selective, Persistent), Supernatural Toughness with a Catch of anything that would bypass a forcefield, and possibly one stunt adding +2 to the Weapon rating of her Incite Effect if she's bypassing the Manton effect with it, and another adding +2 to her defenses with it.
Those are just my interpretations of her powers, though. I don't know a ton about her skills or her aspects.