Card advantage is a strategic concept (rather than a specific game term) and a lot broader, and basically means having more cardboard than my opponents. For starters, any card that puts more cards in your hand is card advantage, even if it doesn't say draw. But card advantage also looks at what happens in other zones
In the process, it would often spell doom for any opposing player, especially if its owner had a card with a relatively high converted mana cost in their hand
This places Pokmon firmly in the alternative investments collectibles conversation, alongside fine art, wine, and sports cards, all of which share the same fundamental fragility: no cash flow, high friction, and sentiment-dependent pricing
Scarcity, for one, as well as being part of the Reserved List
At (3)(U)(U), this wouldnt be playable, let alone be able to make it to this list