pokemon 151 booster boxes Card Box Safety Goggles Pokémon TCG: Scarlet & Violet—151

Apart from mutate cards to trigger that ability, I guess you could use Stuffy Doll and Brash Taunter, or fill your deck with cards that grant abilities to your commander like backgrounds and the legendary familiars (Kediss, Falthis, et al)

So for Brago, King Eternal and decks like that, or guardian infinite combos, or even just to throw into Derevi for value, this is a neat ability

Collectors often describe it as a hidden gem in the set

I would recommend setting some clear collection goals before buying anything huge

While this version of the mana curve is useful, it isn't a rule of deck building

Players that are new to the game should be able to find interesting upgrade options just by looking through their decks