While this means the entire Archetype's Monster lineup can be recover from the GY by "Recurring Nightmare", it also means that they're all vunerable to being destroyed by battle by most Monsters if cards such as "Level Limit - Area B", "No Entry!!" or "Windstorm of Etaqua" force them to be put into Defense Position
Unlike archetype building and key cards like Shardless Agent or Omnath, Locus of Creation, W6 would barely be missed and at the end is only a really good turn 2 threat without being a centerpiece of a deck
None of this card seems to make sense with the character at all from what I can tell
This card was only available at a few licensed Pokemon retailers in Japan for a limited time, in May, 2025
They define archetypes, warp deck-building rules, and in many cases, win games outright
These are also used if you want to triple sleeve your Commander decks (only the bravest will attempt it)