That makes it useful in just about any white deck, and thats being borne out so far in the new Standard, with the trusty pup being slotted into +1/+1 counter decks, vanilla aggro decks, and even some multicolored ones
And looking at the rates, doing things this way is exorbitantly expensive and not at all worthwhile
Meanwhile, Gardevoir ex lets you play energy from your discard pile, but in return puts two damage counters on that Pokemon as well
I think in the first one of these Niantic made the mistake of keeping the shiny spawn rate the same, and barely anyone got one, because no one has the ability to run 30-50 raids in three hours (mostly)
Step in, Crown Zenith
Both sides of the card are viable thanks to the spell denial on your turn, meaning this is one of the few cards that really encourages the transformation aspect of getting it down early for the lower cost, then paying the higher cost to transform it when possible