Landisaurus, MoM had a spell exactly like that with Aura of Majesty. It was pretty handy on impossible games when you didn't want enemy wizards destroying you early on, though chaotic or ruthless wizards didn't care so much...
I like a lot of the sorcery spells from MoM, like confusion, psychic blast, phantom warriors, counter magic and such. It'd be really awesome to see some nice meta-magic spells that alter your enemies spells, or your own I spose... say, the enemy casts something like wrack, and then you cast a meta-magic spell on his wrack spell that refocuses it back on his own troops, or turn it into a healing spell for your troops or somesuch.. I really like chaos channels too, the fact