In other words, whats the first Pokemon card? Is a different question than whats the first card with a Pokemon on it? If we are going to value a first appearance then honestly the video game is more of a correct answer First physical product to mention/depict Pocket Monsters
So, the stat-line is bad enough here that you probably want to consistently do 2 or more with this, and that probably makes this a build around
You can increase your Entei V's HP by attaching a Bravery Charm to it
Teferi's Protection has the price tag you would expect for the best protective spell in the format, but you can run another counterspell or Flare of Fortitude, which is a little more expensive but protects all your permanents
Thus, it remains unclear whether McDonald's will distribute promo cards again or implement changes to its distribution process to better handle demand for the TCG
Today I summarize all of the ways decks are sold, both from WotC and non-packaged decks by other players and stores, to help you understand what options you have if you dont want to buy singles or any sort of booster packs