If the asking price on a graded card is higher than you want to pay, you can place a bid
Two turns later they stop, the Treasures pile up, and suddenly, youre the only player casting two spells a turn
Whats a hundred dollars or so between friends, when youre already shelling out a few thousand for a single card
Its also just solid in a Spellslinger build, especially big-mana-oriented ones like Strixhaven s Zaffai, Thunder Conductor
Most importantly, we also got an insane new payoff for filling our deck with Spirits, enchantments, and disturb cards (which happen to be all of them in one card) in Hallowed Haunting, which can quickly take over the game by making a massive board of Spirit tokens
But those points of difference can be advantageous when used correctly