The best part is that you dont even need lots of win conditions, so if you like to foil your opponent's plans and use their pieces against them, you might want to look at Tariel, Reckoner of Souls
Curve topper for aggro, added pressure during board stalls, and a fail safe for explosive decks are some of the gameplay lines I am predicitng for this card
And usually, I salivate at a commander with a built-in fight ability and a way to dodge commander tax
Wolfwillow Haven is probably the closest Standard-legal comparison we have at the moment, and whilst that card is certainly not a staple of the format, it has popped up briefly from time-to-time
Additionally, many feel that a plush backpack isn't prolific enough for a Crown Rare