The fact that Annihilation exiles is also very relevant, both against black and green decks in the format
While certain collector's editions aren't likely to reappear (the hint's in the name, I suppose), the standard Play Boosters, Commander Decks, and Starter Set will probably enjoy reprints for a little while yet
Furthermore, if it is destroyed, D can be revived, and it can also be revived itself, so it becomes a perpetual machine of Friche removal, and it is somewhat strong against removal other than destruction, where this kind of card is weak
The Reaver Cleaver and Sword of Feast and Famine generate mana and value with each swing, while Conqueror's Flail and Champion's Helm protect your threats and disrupt opponents
The thing that sets this commander apart from other prospective commanders for a vehicle deck is that he actually doesnt need you to run a single vehicle in order for him to do his thing