The Smurfette Principle: Up until 2013, whether it was Misty, May, Dawn, or Iris, only one girl was allowed in the group at a time
Team Up is a modern set, so you shouldn't have issues finding this card in lightly played (LP) condition at minimum, with copies typically selling for around $20, while NM copies command a hefty premium, fetching the market price in most cases, though some copies haven't quite lived up to expectations
For some reason I felt like itd be more plausible for the Machamp to be printed in multiple stages compared to the rest, rightly or wrongly
Instead, I picked up some gold-bordered copies to round out my playset, and they cost me around $50 a piece