Interesting symbol/ reverse holo

Hello, I am new here and just wondered if someone could answer this:

Today I got some cards through the mail and in there was a really cool Crobat from Triumphant I believe. It has a really unique pattern in the reverse holo and even more weird behind the text is this cool logo. I will let the pics do the talking:


holo pattern:

Logo:


I have never seen this before so it was an awesome card to get lol. Any help would be really appreciated. Thanks.

Also seeing that this is my first thread in the TCG section thought I would give a very quick glimpse into my collection:







Thanks guys :D

This card is a special holofoil known as "League Promo".
If you go to particular leagues you can have a emblem on the card which you are rewarded for attending/playing in a league.
I've seen this emblem on a Double Colorless Energy which looks really cool !
Some of the cards just have a Pokeball symbol in the middle rather than just the trainer symbol, but it is still a league promo !

Wow thanks so much for the info :) Thats really cool. I really appreciate the help :)