Gates of Jerusalem
Queen Maachah (look her up, I'll wait)
Asherah Pole (in deck)
Outsiders (Crimson/Brown)
This would fit right into a Crimson defense that uses everything except Bab Merchants (maybe as a replacement for Merchants?). It even grants Unity for Bab Siege Army.
The great thing about this is that you aren't forced to pair it with a NT offense. Maachah lets you keep APole deactivated on your attack, to be activated on your opponent's attack. And she's great for initiative, perfect for when you want to play a CBN Seized By Babylon, Regrets, Betrayal, or Head of Gold.
And both Maachah and Outsiders recur Asherah Pole from discard. This, coupled with the fact that Asherah Pole's ongoing ability is mandatory (meaning it stays active even if APole is discarded or stolen during battle), means your opponent will spend a lot of attacks facing down CBN EEs.