Legendary Secret of the Six Samurai (SAST-EN093) - Savage Strike Unlimited

When you Normal or Special Summon a "Secret Six Samurai" monster(s) (except during the Damage Step): You can Special Summon this card from your hand. You can only use this effect of "Legendary Secret of the Six Samurai" once per turn. Once per turn: You can banish 1 Level 4 or lower "Six Samurai" monster from your GY; until the end of this turn, this card's Attribute, Level and ATK/DEF become the same as that banished monster's.