Smash is more suited for the early control, removing an opponents win condition like an Ursula Deceiver of All , to slow down their pace
Its not the in-game utility that gives this card its value though

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CGC 3719376001 It was definitely the first one sold, and it went for $360,000
Wrap the stacks in something that will hold it together, but not damage the cards
However, if the player is able to get 5 different Spellcasters with unique names on the field, Quintet's ability allows it to destroy all cards the opponent controls