Illwinter, the spell that is...

[Endoperez]

1) Worldwide unrest, temperature scales changed towards cold 3.

2) Global spells don't have national spell section. It's a mistake. It was one of the first ones reported in the manual typo thread.

3) The development team is named after it. they used to be Bogus Game Design, after the troll, but since Bogus means "false, counterfeit, nonexistent or fraudulent", it was changed. It's not extraordinarily powerful, but it hurts most nations much worse than the nation that can cast it.