Putting cards you own in other peoples hands is nuts
Therefore, if you were to obediently fusion summon with Red-Eyes Fusion, you would have been forced to "stand alone on the field"
That said, this does mean you have an obvious (and relatively cheap) first step to take when going about upgrading the deck
The art is well, in the Eyes of the Beholder, I suppose
They're cheap creatures with massive upsides that no one should sleep on
#6 Gholdengo ex Special Illustration Rare Beyond the artwork of the card (which, Im not gonna lie, isnt my favorite), it seems likely that this card has the kind of price tag it has because people are still excited about playing Gholdengo ex