rainbow energy card pokemon proxy cards first edition foil (Team Rocket RO 17) Special Energy. Would this activate the ability?

You can order the MTG Transformers Secret Lair packs directly from the WoTC website, starting 9am PST on December 5 - as with all Secret Lairs, you will only have a limited window to submit an order

Aside from the Pathway cycle, the other MDFC cards are nonlands on the front side, and lands on the backside

This effect bears resemblance to Rapid Strike Urshifu VMAXs G-MAX Rapid Flow, which dominated the Pokmon TCG throughout multiple formats

actually had of human created game concepts

Still, with an incredible collection of alternate art cards to chase, its still one of the best Pokemon packs from the Scarlet and Violet era.