Its Mirrorworks on a stick shtick leads to disguising turns, even if making your artifact copies creatures limits your explosive potential
This makes bounce spells incredibly bad against mutations compared to bouncing a creature with a bunch of auras where they normally just all go away
Beauty is in the eye of the beholder, of course, but by nature, art is easier to display and appreciate when its not on a screen
The third chapter allows this card to transform into the legendary creature O-Kagachi Made Manifest, which is a 6/6 flying trampler that can boost its power by returning a card from your graveyard (of an opponents choice) to your hand
It's a problem seen regularly for the best card games, and it's also something the tech industry has trouble with thanks to people reselling the best graphics cards, but of course the Pokemon Trading Card Game is no stranger to the phenomenon known as "scalping" (man, I hate this word)