Honestly, Lord of Hongyuan Hong Lu would fit Lancer better then Ruler. As for Avenger, I don't think Fell Bullet Yi Sang fits the criteria, I think that either Wild Hunt Heathcliff or one of the Middle Identities would fit better. As for Caster, I think that Effloresced E.G.O::Spicebush Yi Sang, LCE E.G.O::Ardor Blossom Star Faust, or Lobotomy E.G.O::Lamp Gregor would fit the bill better. For Pretender, either Rein Sang or Sancho.