These cards are a special promo of 8 types. It has a organizer logo. This card was distributed to players of the tournament that a pokemon organizers was run as an official local tournament.
The pokemon event organizers
The pokemon event organizers can run the tournaments of official pokemon trading card game.
? Raul@探求者 (@Gracecode_Raul) 2016年7月11日
Qualification of the organizers will be given to people who passed the test.
The cards have been traded in Japan auction.
Usualy, Sealed pack and 8 types in total (Open new tab)
Refer to Official info