Card text
Discard a card from your hand. If you do, search your deck for a Psychic or Dragon Pokémon, reveal it, and put it into your hand. Then, shuffle your deck.

Forbidden Light is a set in the Sun & Moon series. It was released on 4 May 2018. The printed size is 131. This checklist is longer, at 150 cards. Mysterious Treasure is 113/131, in position 116 of 150 on this checklist. Before it is 112a Metal Frying Pan, and after it is 113a Mysterious Treasure. The listed rarity is Uncommon.
Mysterious Treasure is a Trainer card. The listed subtypes are Item.
Eske Yoshinob illustrated this card. The same name is on 177 other cards in the catalog.
The card text says: Discard a card from your hand. If you do, search your deck for a Psychic or Dragon Pokémon, reveal it, and put it into your hand. Then, shuffle your deck. The card text says: You may play as many Item cards as you like during your turn (before your attack).
I keep a set binder for Forbidden Light, meant to hold every card of that set. This card is one slot in the Forbidden Light set binder. I still need this card.
Discard a card from your hand. If you do, search your deck for a Psychic or Dragon Pokémon, reveal it, and put it into your hand. Then, shuffle your deck.
You may play as many Item cards as you like during your turn (before your attack).
Forbidden Light, in the Sun & Moon series. It was released on 4 May 2018. The printed size is 131.
113/131. It is entry 116 of 150 in this checklist.
Eske Yoshinob. The catalog lists 177 other cards with that illustrator.
Uncommon.