I press my characters hands into my enemies face with storm wall until they turn into ash. Kind of works like a touch spell.
i have nothing against playing to suit your style, but it wouldn't be easier (and less strange) to just use storm wall as it was intended to be used?
Bandit1: Ha mage! iv'e got you now!
Mage: oh no you don't! *presses hand to the bandits face*
Bandit1: *muffled screams of pain and agony*
Bandit2: Whats that weirdo doing to joey?!?!!?
Bandit3: i don't know but it's weird! we better get out here before he starts rubbing his hand in our faces!