Take a look: Weirdly, this particular rambling McNally has never seen a reprint, so any copy out there that you might see is forever just Creature Construct. As per official rulings, it is indeed an artifact, if you couldnt tell by the frame, the colorless casting cost or the general animated map-ness of it all
The body isn't considered big in this format, and most decks have better things to do with their mana than spend it on pumping out 2/2's
(2) collectors valuing superior Bandai Japan print quality
Many players might not know this, but Legendary Pokmon before Black & White were normally subpar
One Piece is no different
The only advantage of going first is that you have the opportunity to evolve your Pokemon sooner, but considering the games most powerful mons are all Basic ex Pokemon, that isnt much of an advantage right now