pokemon card meowstic 085/191 Mint / near mint condition trading card Meowstic (60) 2017 Pokemon Sun

The 3 Oblivion Rings are also an interesting element to this discussion I feel

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

Keep boosters sealed if your goal is future appreciation or rare-event timing in markets

You can build Turboland decks that feel like Storm, both in play patterns and in how narrow their cards are, or you can have the usual ramp payoffs attained through actual land count rather than mana rocks or creatures (suggesting a land subtheme grafted into a 'normal' deck)