This is the master duel deck that I have been using in master duel for a couple of months now. This deck can deal with most decks you will find in ranked, as long as they let you go second. Sangan is the second best normal summon that this deck has, most of the time you will search Mekk-knight orange or World legacy chalice, but Maxx c or Ash are great targets when you have enough Mekk-knights already.
Without this deck I wouldn't of been able to get to plat 1 last month, I was playing dinosaur at that time which doesn't match up well against Maxx c or backrow decks and is kind of inconsistent. This deck doesn't really care that the opponent has Summon-limit, Gozen or Skill drain, when you can just hit them with a couple of Mekk-knights each turn and Pot of prosperity for 6 into Lightning storm is always an option. Against good Tri players or Drytron you will need a good hand with specific counters like for Tri (Lightning storm to bait out Revolt and called by for the handtraps they will have drawn), for Drytron (A Kaiju and Lightning storm or Forbidden droplet and Lightning storm).