I am inclined to view this as a bug.
When an immortal dies in a friendly province, he is respawned the following turn inside the capital fortress. So there would never be an endless loop of 75 turn battles within a single turn.
In theory, i could call Grock back. But your army is likely to storm the Agarthan fortress before he would return. I will play another turn or two, but Agartha is on the way out. AI is in the near future.
Well done.
