It's the same reason that I start defending my life when I get to 4 against Whitebeard, the threat of being hit by big numbers for the rest of the game is too great
Or with Port Razer, Combat Celebrant, Relentless Assault, and Savage Beating, you can make many, many Dragons per turn
While players can go their whole careers without seeing any of the Nine in the wild, they have retained their revered status for the whole of the games history.
The retail edition of Mystery Booster did not include playtest cards, being replaced by foils instead
Observant art aficionados have even found him hiding in a handful of card images
It makes the cut here where Sword of Feast and Famine doesnt and thats because the latter sword attracts way too much attention for your cheap and evasive Commander