It also predates the unlimited print run, and differs by having a shadowless border around the character box
One-off sales can be caused by flukes of circumstance or particularly urgent buyers, so valuing a Mewtwo card is more appropriately done by looking at their average resale value on sites like TCGplayer and PriceCharting (all listed prices are from the time of writing)
Thats only if your commander is a 0/0, though
It's more money upfront in some cases, but with Mega Evolution enhanced booster boxes going for around $260 right now, you could get some of the top chase cards instead
Miracle Berry would see similar reprints like Lum Berry from Ex Ruby and Sapphire, but ultimately Unown G from GE that can become a Pokmon Tool made cards like these obsolete
The card graded at a 'Near Mint/Mint+' 8.5 by CGC was autographed directly by Rush - unlike the signed protective cases of the previous record-setting cards - and featured a blank card back in keeping with the 'whiteback' artist proofs provided to MTG illustrators