Ditto - 63/113 (Pikachu) [DS - 063/113] Modern Graded Cards If you have a Stage

If you have a Stage 1 or Stage 2 card that evolves from that Pokemon in your hand

and its remaining HP becomes 10

this attack does 50 damage to that Pokémon

And the contents of the Pokémon TCG: Celebrations Collector Chest definitely qualify as treasure

When a Pokémon-EX has been Knocked Out

Ditto - 63/113 (Pikachu) [DS - 063/113] Modern Graded Cards If you have a StageCard Number: 063 113 Rarity: Common Card Type: Lightning HP: 60 Stage: Basic Card Text: Poke POWER Duplicate Once during your turn (before your attack), you may search your deck for another Ditto and switch it with Ditto. (Any cards attached to Ditto, damage counters, Special Conditions, and effects on it are now on the new Pokemon.) If you do, put Ditto on top of your deck. Shuffle your deck afterward. You can't use more than 1 Duplicate Poke Power