You just need a minimum of one creature on your board that will become your Ring-bearer and due to how The Ring mechanics work, said creature will meet the legendary condition for your tutor to be valid
It's still a great card that might pick up value as Celebrations' original release date gets further away, so now is probably a good time to grab one if you've been waiting.
It has two attacks, and both are excellent
Id also love it if you followed my Twitch channel TheCompleteCommander, where I do Commander, Brawl, and sometimes other Magic-related streams when I can
Rarity: Common Mewtwo Promo Card (From the First Movie VHS) (2000) It came inside the clamshell case of the VHS (which is where I got this card as a kid - yes I am old)
Developed by The Pokmon Works (Pokmon HOME, Pokmon Sleep, Pokmon Friends), Pokmon Champions is a game focused on pure battling