And just look at all the Knights in the format: Benalish Knight, Burning Shield Askari, Cadaverous Knight, Fallen Askari, Femeref Knight, Knight of Valor, Searing Spear Askari, Shadow Rider, Southern Paladin, Suq'Ata Lancer, Zhalfirin Commander, Zhalfirin Crusader, and Zhalfirin Knight
Ideally the generate random deck option should also be in the Deck Editor, so that you could tweak it so that it plays a little better
There are plenty of other possible lower-priced reprint options I could see being in the set including the other portal tutors, Goblin Settler, Scroll Rack just to name a few
I dont think Ive ever connected burn and graveyard strategies, though I suppose you can find plenty of archetype diversity in Commander