You would never consider adding these cards to your constructed deck and probably don't want to see them in limited formats either
It provides a cheap way for players to sacrifice their own creatures with a significant bonus added on top
Bloomburrow had to deliver animal resonance, and it did in a big way
"'Pokemon TCG Live will go hand in hand with the tabletop version that fans know and love, and welcomes a new era of digital play where Trainers around the world can play together regardless of their preferred platform." Players will still be able to use the digital redemption cards found in every Pokemon trading card pack to get digital cards
(Nether Spirits) Outside of that, other than the occasional Commander deck that runs it as anti-creature tech, The Tabernacle at Pendrell Vale is not a common sight
Blue can draw the most, sure, but it also has many, many redundant effects and cheap options on the curve that can do other things