[@VitaVitaAR] Ah! So that's what the NP rule was about! In that case, can I use Perseus? This would be a little different from the prototype Rider, in the sense that he actually has Skills and can theoretically use more than one NP at once (mana permitting), but some of his NPs are really just on par with Skills.

That would be Rider, Lancer, or perhaps Assassin.