While its definitely helpful to have access to the rarer cards in a deck, its also fully possible to play a competitive deck without Legendary cards and just a few Rare and Super Rare
For some cards, even possibly enough to retire on
you may then special summon any Four Star or less "Horror" Monster that is in your hand or has been banished (Other than "Unknown Horror" or "Horror Box")
Ive spent millions on cards I believe are legitimately bad investments
2 Trainer $50,300 1999 Pokmon Base Set 1st Edition Shadowless Holo Blastoise #2 $45,100 2005 Pokmon Ex Deoxys Gold Star Holo Rayquaza #107 $45,100 If youre reading this, its probably not news that since the beginning of the pandemic, rare Pokmon cards have seen a huge increase in demand
Thanks for reading, and hit me up in the comments for once