Does the Onix from HS Unleashed's Pokebody stack? Say, if I had two on my bench, and attached an energy to one of my pokemon from my hand, would I remove two damage counters or just one? Thanks.
Onix from Unleashed has been errata'd - the text in English is a mistake; instead of saying "that Pokemon", it's supposed to say "this Pokemon" - that is, the Poke-Body affects that specific Onix only.
So if you attached an energy to a Pokemon besides Onix...nothing would happen.