[chrispedersen]

Why don't we try to mod the spell, so it has a duration - perhaps 5 turns, and mod the spell level and cost appropriately?

I'm not really a bit hacker, but it looks interesting to try.

On this specific game, I think deliberately or accidently agartha got unfairly hosed. But there is a larger problem.
If innocently applied, pythium may have been expecting it to defend his castle.

I would rehost the turn, and prvent agartha from storming for 1-2 turns.