It is a big difference whether you are a normal Dungeon boss with the samurai or Susano / Lakshmi Ex. Myself have both down and it is not so simple. You have to look for buffs, CDs, mechanics and your kenki.
All those who think that the samurai is much too simple despite the great DMG output either have never played him on 70 or 62+ or his mechanics not understood. It is not just about combo to combo to use but also to use your Kenki accordingly.
And positioning is more important with the Samurai than with the other Meeles, in my opinion, because like with the others one makes more DMG, BUT depending on the position you get also more Kenki.