MTG Salvation

Quote from NRWGN »

I did a quick search and didn't see it brought up, but has anyone looked at replacing red with black? You lose Blood Moon (which is obviously bad), but you have a functional (albeit harder to cast) replacement for Stone Rain in Rain of Tears and gain direct (and better) removal/better card advantage/a different set of threats (Think Abrupt Decay, Fatal Push, Grim Flayer, Liliana of the Veil, and a more black/color fixing list could even try to run Phyrexian Obliterator)

I love my GR deck, but would be interested in doing some testing. You can even keep it low to the ground like the older Growza decks with Tarmogoyf/Grim Flayer or have a more overall land based deck with Courser of Kruphix/The Gitrog Monster. Obviously not trying to derail the thread and turn it into a GBx Rock conversation, but would a ponza-style deck with MWAM minus red have merit? Is it even worth talking about?

EDIT:
Some random big mana threats that could synergize with a GB ponza shell:
Hellcarver Demon
Dread Defiler
Tasigur, the Golden Fang
Fendeep Summoner (loose, but imagine animating their lands and decaying/pushing them + animating your own lands speeds up the game)
The Gitrog Monster (Synergizes with Courser of Kruphix-based lists)
Kalitas, Traitor of Ghet (Just a house against aggro)
Phyrexian Obliterator