Welcome. Thanks for sharing, including that unboxing video. 
It’s still odd how they’ve only printed those six EX Ultra Rares of the set in Portuguese for this Easter Egg product, but I guess we sometimes see similar things for some Japanese unlimited edition set cards.
Someone also shared a RiHappy Facebook post with some more release info about them a while ago. I’ve very briefly mentioned it in this thread, but I’m also just gonna quote that part as relevant info for this older thread, now that’s it’s bumped anyway.
Greetz,
Quuador