You need to show the cards to your opponent, including the one you keep.
If you pick up your entire Deck and there were no Spell or Trap Cards, then "Magical Merchant"'s effect disappears.
You need to show the cards to your opponent, including the one you keep.
If you pick up your entire Deck and there were no Spell or Trap Cards, then "Magical Merchant"'s effect disappears.