I was fiddling with spells for wizard for Dwarfhack and got to thinking - you know what would be a good spell? Call Demihumans, where you get a group of friendly humans, elves, or dwarves from the nearest settlement to come help you. That would be very on-theme for wizards; "a group of friendly rangers happens by and Gandalf happens to know their leader; they're hunting the same orcs that you are. What a fortunate coincidence!"
When the wizard does his job right, people won't be sure he's done anything at all.
Under ACKS' spell-building guidelines, we get something like this: