Good listen, as always. I don't think Andy gives Jason enough credit for the innovations he's made to the black recursive aggro archetype. Andy's running 3x Gravecrawler and 2x Bloodghast, for crying out loud.
I like their classification of the archetype as aggro-combo. For as much as cube designers are always trying to shove sideways combos into their cubes, it's funny that there might be a combo deck already in our cubes, lying right under our noses.
They did open my eyes to one sac outlet I hadn't thought about -
Undercity Informer. It feels like a three drop that requires another mana to activate might be a hair slow, but it does set up your graveyard pretty nicely. Also, I'll have to give Puppeteer Clique another shot, if I ever slot Birthing Pod back in.
Also - Jason! I think the comment you left on the article itself sells your own ideas a little short. I've read all your articles, so I know that when you talk about layering black sacrifice effects with other colours in your cube, you're referring to things like Treason effects and Birthing Pod. But it's not really clear what you're referring to in your short comment. And it seems like the responders to your comment are confused for this reason.