Secret Six Samurai - Doji - Spirit Warriors (SPWA)

When another "Six Samurai" monster is Normal or Special Summoned to your field (except during the Damage Step): You can send 1 "Six Samurai" card from your Deck to the GY. If exactly 1 "Six Samurai" monster you control (and no other cards) would be destroyed by card effect, you can banish this card from your GY instead.