The gameplay was much simpler over 25 years ago than it is now, mostly due to its Trainer Cards
This greatly benefits your Mewtwo EX, whose move " Psydrive " has a condition where you must discard 2 Psychic Energy to play the move
Legality depends on the tournament format -- Chef's Kiss can be legal in some formats and banned or restricted in others
These are the cards which winning decks are built around: spells like Badgermole Cub, Kaito, Bane of Nightmares, Natures Rhythm or Voice of Victory
Moving forward, I'd like to see what Stormwild Capridor can do in Historic as we do have Star of Extinction but in standard, it might just be better to be a full-on Feather, the Redeemed deck if you're trying to play anything like this
Nyxbloom Ancient 5 Printings and their Prices Track Nyxbloom Ancient Prices Free collection tools for Magic: the Gathering