Question for experienced MP'ers

[Cainehill]

I've had games where I had over 300 water gems stockpiled - I definately would've considered 150 gems for a 40% chance of destroying, mmm, Pythium's capitol, thus almost de facto ending the game for them. Of course, it would've been difficult to get the level of water magic required with a non-water nation.

Destroying a province, domes not protecting it, etc, is simply something I would _not_ want in the game. One turn you're cruising along just fine, the next your capitol sinks into the water, killing most of the mages you probably have stockpiled there, the magic items that were on them, and destroying any capability for recruiting capitol-only mages or units.

Worse, there's no effective counter for it save "Keep your dominion extremely high". All other spells, domes can help against, having a fort can help against, having your mages fire/cold immune can help with, etc.