Now Im not sure what you mean by Morde main. Like pre rework mains?
I never mained him pre rework, or even owned him, but I sure as hell main him now. Everygame(unless someone gets him first) I play him, because I fucking love Mordekaiser; he's the PERFECT CHAMPION(for me anyways). My Morde play goes hard, and hypercarrirs MOST games.
I don't always do Mord adc, but when I do, I make sure that I have Leo, Tham, Blitz, or Naut supp.
I run mobility summoner spells, and build mixed stacking damage, AS, and max out my CDR. Rylias and DMP for health. Bring forth my Quadra kill
Mordekaiser es numero uno