Detective Pikachu (SM190) (Stamped) [Sun & Moon: Black Star Promos] STX Tawnos finally cracked the puzzle:

Tawnos finally cracked the puzzle: the strange structures did not house Mishra's malevolent creations but were themselves among his creations

and they each take a particular role on the submarine

Set: Tempest Type: Sorcery Rarity: Rare Cost: {3}{B}{B} Each player exiles all creature cards from their graveyard

You may also get anywhere from zero to five Retro-Frame cards and up to two Borderless Rare or Mythic Rare cards (none guaranteed)

Detective Pikachu (SM190) (Stamped) [Sun & Moon: Black Star Promos] STX Tawnos finally cracked the puzzle:Set: Sun & Moon: Black Star Promos Type: Lightning Rarity: Promo Retreat cost: Colorless,Colorless