It does not have to be realistic
All you need is the first one, and you can go from there
Generally, unless youre trying to lose life to trigger other things, you probably want to avoid the life loss equipment cost, as it can be pretty expensive
P/T Number 239 Language English Legal Formats Brawl, Commander, Competitive Brawl, Historic, Legacy, Modern, Pioneer, Timeless, Vintage Not Legal Formats Alchemy, Pauper, Standard Rulings (7/23/2021) The target opponent may still cast spells in response to Xanathar, Guild Kingpin's ability in your upkeep
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
Do Wildcard Bundles Make It Pay to Win
