For my mind when you're an attacker they are:
Magic Shield and Natures Blessing (But only NB to remove plague)
Seriously are there any worse than these two - I normally have 1wpa as an attacker so MS does so little it is useless...and as for casting NB to remove plague - I have a record 21 casrs for nil success....
What do others think?
Magic Shield
While the natural aura of your Wizards will help protect from enemy spells, a little additional protection can never hurt. Casting this spell offers you a shield of magical protection for your province for about half a month.
Is Known: Age 1 ... now
Available to: All
Effect: Increases your defensive magic efficiency by 20%.
Duration: max 24 hours
Cast Message: For X days, the magical auras within our province will shine brightly!
Mystic Advisor Message: A shield protects us from the black magic of our enemies
(Estimated: X more Days).
Nature's Blessing
Nature's Blessing will protect your lands from any droughts and storms the world may see fit to place on you. This spell also has a chance of curing the Plague if your lands are affected by it.
Is Known: Age 1 ... now
Available to: All
Effect: Protects your land against Storms and Drought. Has a 20% chance of curing Plague (per cast).
Duration: max 36 hours
Cast Message: Our lands have been blessed by nature for X days, and will be protected from drought
and storms.
Mystic Advisor Message: Our land is blessed by nature (Estimated: X more Days)