This Pokémon will change into its at the start of Round 3 in Battle Mode.
Search
In Search Mode, the silhouette of one Pokémon in a location that does not already have one will be revealed, or the full image of one Pokémon in a location that already has a silhouette will be revealed.
Absorption Coalescence
This Pokémon can fuse with the following Tretta to create a new Pokémon at the start of Round 3 in Battle Mode:
As long as the player has a Tretta Report, this Tretta will activate the Secret Ticket when used in Battle Mode. This Secret Ticket will summon Wobbuffet, and will allow the player to deal extra damage if they attack second in the current Round.
This Tretta was given to the first three million patrons of the Japanese theatrical screening of Diancie and the Cocoon of Destruction, which was released on July 19, 2014. The illustration also features the movie logo. A Diancie-color version of this Tretta was available in first-edition versions of Diancie and the Cocoon of Destruction on Blu-ray and DVD, released on December 17, 2014. This version does not feature the movie logo on the front, but features a "Pokémon the movie XY" logo on the reverse where the left and right move slots usually are.
Trivia
Origin
Moonblast is a move that Diancie can learn in the games. Like the Diancie distributed at Japanese cinemas in conjunction with the screening of Diancie and the Cocoon of Destruction, this Diancie is also in a Cherish Ball.