Artillery Rituals

[Ironhawk]

If you are talking about full-on army attack rituals rather than assasination rituals, I would say Murdering Winter. If you wait for the winter season and prepare the province with a Wolven Winter, the effects are truly devastating. I once killed 200/300 human-type units with it. Bear in mind that Murdering Winter/Flames from the Sky do regular damage and are thus less effective vs units with more than standard HP.

Baalz - interesting choice of rain of toads!