Aaron--Gives a reason to play with Egyptians/Plagues with Moses. Not a very splashable CTB with the ECs it chooses.
Elisha--Strong Hero; stronger if you can rescue Elijah. EDIT: Unity Human Heroes (O.T. Prophets)
"Radiant" LS--Counterpart to the "Darkness" LS. Dual verse so it works with either all OT or all NT LS.
There's so much that can be done with Unity. Pretty great mechanic if you ask me.
