Its just so tough to hit anything in this set, which is why its ranked where it is
We've had cards that care about basic Energy before, like Perrserker and Raihan, but being able to put them directly onto your benched Pokemon is powerful
Yes, rarities often determine how useful or strong a card is, but this is only one factor
Massive damage output tied to creating horde of tokens, I can appreciate (see my favorite in mono-black, hehe)
This treatment is glossier and much shinier than traditional foils, and has reappeared on two subsequent Universes Beyond products in Tales of Middle Earth and Doctor Who, which may signal a pattern for future collaboration sets
It's very heavily played as a Commander with a massive 16389 among all partnerships and that's the 7th most played Commander if you count all partners