It can't get any rarer than this - when only one copy of a given card exists, you know it's uniquely special
Ancient Copper Dragon is a powerhouse, and it seems to be in such large demand that its pre-release price has actually been increasing Dragon of Mount Gulg was around $150 in mid-May, but now it's close to $200
Chromium Finish Product has an optichrome, high gloss finish
Being able to sac one of your own Gobby tokens in order to destroy an opponents powerhouse artifact combo piece or game-warping colorless permanent is quite an impactful trade-off, so if you keep losing to Chimil, the Inner Sun or The Immortal Sun (or other, non-Sun-related artifacts), nab a copy of this bruiser and profit mightily
Any that went through many ideations before landing on the perfect look
Plan a Direction (cut) Power 6 Design 3 This is a bit too much rather unnecessarily