If you control 3 or more "Six Samurai" Synchro Monsters with different names (for every 6 Bushido Counters you control, reduce this number by 1): Destroy all cards your opponent controls. If this Set card in its owner's control is destroyed or banished by an opponent's activated effect: You can Special Summon 1 "Six Samurai" monster or 1 "Shien" Effect Monster from your Deck/Extra Deck. You can only use each effect of "Six Strike - Sextuple Barrage" once per turn.