Offensive Rituals vs Summoning?

[Nick_K]

I wouldn't recommend using multiple flames-from-the-sky on the same province in the same turn. A proportion (50% IIRC) of the units in that province is immune to such attacks and these immune units are immune for /all/ such attacks in that turn. So, if the enemy has 20 mages, 10 are vulnerable and your first casting kills 7, then there are only 3 left that the second can target.

[Teraswaerto]

The mages might have so many hitpoints that a singe casting wont kill them, but two or three might.

[DrPraetorious]

The best use for offensive rituals is to drop them on an enemy army the same turn you fight - since they start combat wounded.

If half of his mages start combat wounded, you can drop a battlefield cleaner (fire storm or flame storm, whichever one it is) and his mages will generally die first, even if you've both got warriors of fooheim up.