ummm...that's not a combo Itachi. That's just using the cards the way they were meant to be used. That's the entire basis behind any 6 Sam OTK deck. This is very very old news and everybody knows it. You can also do it with any 6 Sam. Yaichi does not need to be there. You can use Kamon, Zanji, Irou . . . anyone. Actually the ideal is to have Heavy Storm and then summon Zanji, 1 Grandmaster, and 1 Great Shogun on turn 2 and then Zanji will auto-win against whatever your opponent's summoned on his turn and you can swing with Grandmaster and Great Shogun for 4600 damage.