Sealed Music Box

[Field] [Auto] When you activate this card, look at 7 cards from the top of your deck, add up to 1 "Hirudegarn", "Tapion", "Minotia", or green Unison Card with a specified cost of 1 among them to your hand, then shuffle your deck. [Activate:Main] G, place this card in its owner's Drop Area : Choose up to 1 "Tapion" or "Minotia" card with an energy cost of 3 or less in your hand and play it.