This is because among synchro monsters, there are not many finishers that are specialized in super high hit points or build breakthroughs such as Access Code Talker / Negarogear Azeus , and the same goes for Warrior / Stardust monsters
Six Strike - Legendary Lord's Sextuple Impact Normal Trap Card If you control 3 or more "Six Samurai" Synchro Monsters with different names (the number of monsters required to activate this card is reduced by 1 for every 6 Bushido Counters on your field): Destroy all cards your opponent controls
These might be the Classic of the Anniversary set.
With only a handful of exceptions, such as Selfless Spirit, Skyclave Apparition, and Anafenza, Kin-Tree Spirit, most of what you'd want is here
Before you buy, check the bottom of your OP-01 box, if it's blue this case will not fit
DSC_0880~319202119 301 KB Vol.1 Dark Magician from the OCG