Underground Treasure Chest

(After a set order is played, put it in the order zone) Play this if you have a vanguard with "Onimaru Kunitsuna" in its card name and your order zone does not have an Event with a different card name from this card! [CONT]:If you have a vanguard with "Onimaru Kunitsuna" in its card name, this card gets all of the following. ・[AUTO]:When this card is put in the order zone, search your deck for up to one unit card with "Hakata Toushirou", "Gotou Toushirou", "Shinano Toushirou", "Houchou Toushirou", or "Mouri Toushirou" in its card name, reveal it and put it into hand, and shuffle the deck. If your order zone has two or more other cards with the same card name as this card, when you would search the deck by this effect, you may search for a card with "Hakusanyoshimitsu" or "Onimaru Kunitsuna" in its card name instead. ・[CONT]Order Zone:If you have a rear-guard with "Hakata Toushirou" in its card name, change the trigger effects of "Gold Coin Box" revealed by your vanguard's drive check other than the [Power] increase effect to "draw a card, choose one of your units, and it gets [Critical]+1 until end of turn". ・[CONT]Order Zone:If you have a rear-guard with "Hakata Toushirou" in its card name, the original [Shield] of your "Gold Coin Box" becomes 10000.