In the first Commander product, it signaled that our friends in Studio X (called R&D at the time) were not just willing to design with the format in mind, but specifically targeting parts of the game which meant something only to us
This oversized card takes the form of the base Ultra Necrozma GX rarity without any rainbows or full art detailing
There you can find decklists being shared, new decks being brewed, championships and metagame discussion (and the popular which card should be banned now rant as well)
That Dedenne and Forretress introduce new Tera Types might hurt their chances at becoming a part of Scarlet and Violet , as the Pokmon TCG will likely want to play it safe and keep its first Terastallized cards simple
Pincurchin's paralyzing Thunder Shock requires a coin flip to be successful, but stalling out an opponent is a powerful tool, especially in shorter games
People who followed the datamined spoilers already knew this, but now we have TCG art and hence official confirmation