My second KoG playing Numen era Tetsudo.
I know it's late... but after trying hard I finally made it.
Easy counter against Subterror Nemesis, Magnets, koa'ki meiru. Hardest match is Blue-eyes because they have backrow removal, red-eyes is not that hard, same goes for neos fusion.
A bit hard to believe considering the ladder is full of high level monsters. But it's a good deck, hopefully it comes back as tier 5 at least... some day lol