pokemon rayquaza deoxys legend card and Deoxys LEGEND RAYQUAZA & DEOXYS LEGEND (BOTTOM

Thirty years later, it's the highest-grossing media franchise in the world and Pokmon cards have become big business

There's a lot of good ways to do this, ranging from Deranged AssistantDeranged Assistant to add mana and self-mill, to Search for AzcantaSearch for Azcanta for mill (plus some card advantage later down the line), to cantrips like Mental NoteMental Note for more synergistic milling

It was not for sale in any toy stores, Pokemon Center, theme decks, sets, or booster packs

Invasion was filled with mana fixing cards, other sets had their Rampant Growth effects and even multiple-color unfriendly Odyssey had common lands which could be sacrificed for a third color in a pinch

Exile is particularly strong in the case of artifacts, which are quite easy to reanimate