Youre placing your threat right on the field for everyone to see, and you could use it to make some political moves in an EDH game
His 4 lore per quest and Evasive ability make him difficult to stop once hes on the board
But what really makes it stand out is the grading
A 4/4 for 5 mana feels a bit unsatisfying from the start and i never really need him
Just a few dozen copies are known to exist at all, with only a single copy ever rated at a perfect Gem Mint 10 - an effectively flawless condition - by grading specialist PSA
However, you can consider playing fewer than four copies of a card if: It gets worse in multiples (such as legendary creatures) It's only useful against certain matchups It's a win condition, and your control deck will have time to dig through the deck and find it You're stuck choosing between two cards which have equally strong, similar, but slightly different effects (you could play two of each) It's a slightly worse version of a card you have four copies of already, and you're including it because you want even more of that effect