It can double the number of every counter on an artifact, creature, or land by tapping itself
That is of course reflected in its price, with a current average value of $84
The standard practice on Reddit is to price things at 10-15% below TCGplayer or eBay comps, which might sound like you're leaving money on the table
If this does get tossed in as a staple in Path to the Peak-adjacent decks, the pull rate might not matter as much and it could still be worth something, as long as it remains competitively viable (especially at a budget level to start.) Mewtwo V/VSTAR/Gold Mewtwo cards are always worth grabbing, and even if these variants arent the best, these will be great binder fillerespecially the one that uses art calling back to some of the original promotional videos where Mewtwo raids were hosted in big cites
Static abilities
Thankfully there are a few beaters in the deck to satisfy this need, like Indulgent TormentorIndulgent Tormentor and Bloodgift DemonBloodgift Demon