[quote=@vancexentan]
To me riding, and magical defense could also be used on a Rider Class, or maybe even Lancer. The high magical defense is a thing in his corner but it's not exclusive to just him.
[/quote]

I don't believe magic resistance is a class skill of riders, nor is riding a class skill of Lancers. Sure they can have those as personal skills, but those aren't shown in Lancelot's case 

Edit: checked and saw magic resistance is a rider skill. In that case I can edit my post to rider or saber but eh ooc should cover