pokemon scarlet and violet trading card game TCG: Prismatic Evolutions Booster Pack – Zardcardz making it a key addition for both competitive play and collection purposes Pokemon TCG: Scarlet and Violet

Though even for this kind of stuff, it's not uncommon to see a mono-coloured deck splashing another colour (if you're unfamilar with the term, it means adding one or two cards of another colour but not commiting to that colour for the deck)

3 mana is a much bigger ask than 2, but its still a perfectly acceptable rate especially in a color starved for mana ramp options

A: Sakazuki MR, Kuzan MR, Borsalino MR, then SEC Ace (OP16-118) and Blackbeard (OP16-119), then the Admiral Super Alt-Arts

The reason the designers did it this was that they wanted to be able to spread out the +1/+1 bonuses how the player saw fit which included putting multiples on the same creature and at the time the rules didn't allow it