Quote from https://mtg.gamepedia.com/Card_stock »In 2016 Wizards of the Coast developed an additional Magic stock for the Japanese market. This stock is unique in that it has a different multi-ply construction, which retains all of the technical playing card board characteristics but combines them with added dimensional stability. Some recycled content is added to the certified pulp for this board. Although originally exclusive to Japan, this cardboard was also used for the regular Battlebond and Ultimate Masters releases. This type may be recognized by an additional stiffness, and the way that the cards will fluoresce under UV light.
Quote from love_blanketThe problem with defining this format by what is "fun" is that everyone seems to define fun as what they don't lose to. If you keep losing to easily answered cards, that means you should improve your deck. If you don't want to improve your deck, then you should come to peace with the idea that you are going to lose because you chose to not interact with better strategies.