Like, for example, have you noticed how when a bandit gets hit with a fireball they just don't care? Or when someone get hit by shock (and don't die) they just keep on truckin? Or how hurling a massive snowball spell doesn't make anyone cold?
Wouldn't it be fun to cast a spell that lifts someone up and violently shakes them? Or how about hurling a boulder and watching the bodies fly? Summoning...oh I could go on for hours about summoning. Why limit us to the undead / ghosts / daedra / SI creatures? Summon a bear with a bad attitude! How about a plague of rats? Killer rabbits anyone?
I could go on and on...and I'm sure now with all those ideas there's no one mod that does all that. But how about some fun mods that get close? I've looked at Hilarity, and it's on the right track, but I need more twisted fun. (Maybe I should just learn how to make spells like that)