I draw up a loose battle plan. I will focus on Basium first while seeing what Alexis and Kandros will move and where. Alexis has a beastmaster in Kuldevind, so I wait a turn to get one of my own down there forst.
Some southern city have little or no defense, so I move the defenders around.
I acidentaly mis-click and declare war on Kandros a turn before I meant to. No big deal really.
Sabathiel's price is reasonable (he's the only one without Arcane Lore).
We take Bourne first turn of the war and we spot Basium himself. 7 meteors soften him up and we take him down.
First IBT of the war, some Kandros troops appear near the frontline which are easily cleaned up.
Second IBT, Bambur shows up and 11 Angels suicide on the single flurry in our stack

.
We have one unhappy city, so I make this trade.
A message appears saying that the Bannor have captured a city. Not sure if this is good news or not.
Bambur checks back out.
Third turn of the war WW goes to 15

. I revolt to Nationhood. Basium will be dead this turn as well, so hopefully these two combined make a difference.
Bye bye big angel.
I really want to raze his last city but it has Tablets of Bambur so is kept.
My WW cutting efforts have reduced WW to 11. We have a 5

penalty for not being in Republic. I think City States is no longer for us but will wait a while.
Alexis invades and a treant is summoned.
The war effort goes smoothly.
Disaster strikes when Losha Valas kills Kithra (there were 8 other units in the city, I thought heros didn't defend

). In any case, we kill our third hero in 4 turns.
Precision comes in and we go for Soul Debt.
The culture slider is boosted to 20%.
We march on and capture another holy city.
Or at least I think we do

The game crashed soon afterwards and I couldn't get it to load back up. Here is a save from just before the above event. You know what to do.
Kandos will be no more in a couple of turns. Alexis, however, has a small stack (1 crossbow and a few vampires) heading into our lands. I have left them alone to see where they are headed and they might actuall be headed for Sabathiel's troublesome city.