The Blaster Wizards, a home-brewed wizards that blasts things, and that’s about it. THere’s a few utility spells, and you shouldn’t worry beyond that.
“So what do you do?”
“I blast things with magic.”
“Sometimes I blast them even harder.”
“Once in a while I blast them twice.”
I should run a Slayer / Knight / Blaster Wizard / Vanguard Warlord 4e session some time (i.e. all classes featuring a simplified power structure).