So, I found a really interesting interaction. I included just about every tribal cost reducer (such as the Scourge Warchief cycle and the
Morningtide Banneret cycle) and with Morophon reducing colored mana costs, my Changelings all become free spells. With a
Cloudstone Curio,
Tidespout Tyrant, or
Equilibrium in play, I can usually get unlimited ETBs, so whether I'm drawing my library with
Wirewood Savage, destroying the board with
Reaper King, or just dealing damage to the face with
Dragon Tempest, once I get going, it's pretty close to game over. A bit of ramp to drop Morophon early and some haste enablers and
Cryptolith Rite effects, and this has become a really exciting deck. It went a completely different direction than I expected (who knew I'd end up focusing on an infinite combo as my wincon in a tribal deck?) but I think that's what makes brewing so fun. I found an interaction I never would have expected and now I've got a really cool deck.
Here's what I've got so far (the mana base is crazy expensive, but I can't really afford the deck anyways as it stands, so why not dream big?):
Tribal Tribal