Its best with cards that have valuable activated abilities or attack triggers you want to trigger immediately, such as Rowan, Scion of War, or Alena, Kessig Trapper
The aim is not to imitate official cards, but to create names with similar density: short enough to remember, flexible enough for mechanics, and flavorful enough for worldbuilding
This Kangaskhan is rarely auctioned off, but when it does, expect to pay a high price
Related One person explains how selling fake cards would put them off, saying, If I see a couple of fakes, Im going to think everything else youre selling is fake too. Similarly, for shops selling more things than Pokemon cards, it could be a portent of other nefarious reselling schemes