Part of the reason is just the sheer amount of excellent art in the set, which the publisher says contains the largest collection of Final Fantasy artwork ever in a single game. But another big reason are the goofs, which are deeply embedded into the mechanics of the popular trading card game
For only one mana (or three, if you want to cast it from your graveyard), you draw two cards and discard two
Vraska, the Silencer stats are decent for three mana, but her special ability is spectacular
While Rograkh's size may be small, it has a distinct selling point, being the only zero-mana commander in the entirety of Magic
2 Warleaders Call Get Some Bonus Value Warleaders Call is one of those cards that just generates extra value over the course of the game without really doing that much
There are some nice synergies that the Knight type can grant you, The Circle of Loyalty etc., so this could see Commander play for that reason