…because I just got Zendikar’s Roil 
I thought this was the case as well, In got a graveblade marauder in the last one, I’m a bit peeved
I’m not even sure what I got, because I never got a popup with any rewards, they just appeared for me (I was doing deck editing when the QB ended, and when I exited out of that, it apparently just claimed the rewards). I know for sure that I didn’t get a BFZ card, though. No clue what Origins card I actually got, if I got one at all.