That downside is often mitigated by a drain effect youve got online anyway
That said, collectors are a driving force in Magic's secondary market, and as soon as you put a number on a card (beyond its power and toughness, anyway), you're going to get people willing to spend more than $250 on it
A quill from the First Reader at Candlekeep, the spectacles of the Most Holy Servant of Gond, a woven bookmark from the Caleph Arcane of Calimport: readers always leave something of themselves behind
It can be sacrificed, exiled etc
The more cards you can get into hand, the more likely those favorable options will be available when needed
When played as a creature, in addition to being a finisher-class 5/5/5 with Menace, it can perform a board wipe