You could actually just play this in a deck full of just one of these creature types, but the endgame is trying to unlock a full party for a build-your-own Kaldra Compleat
Its also nice to have an alternative use for Valors Flagship when it appears in an opening hand
Of course, you can use cards like Professors Letter or simply draw into your energy cards, but I personally think its way to situational to work properly, which doesnt mean that its not an interesting card with a decent amount of potential, especially because unlike Talonflame, its just a stage 1, so you can actually just evolve into it to make use of its energy acceleration
Weavile #44 Pokemon Cosmic Eclipse Keep track of your collection value over time
Ok Brock's Rhyhorn #22 (Pokemon Gym Heroes) Details All prices are the current market price
But in doubt the flashlight test is a pretty good indication of which is which (if you have both of them to compare)