Yu-Gi-Oh! Shien's Dojo (Secret Rare) - Quarter Century Stampede

Each time a "Six Samurai" monster(s) is Normal or Special Summoned, place 1 Bushido Counter on this card. You can send this card to the GY; Special Summon 1 "Six Samurai" or "Shien" Effect Monster from your Main Deck, whose Level is less than or equal to the number of Bushido Counters on this card.