Currently, Wizards start off with the Encounter powers Entangling Force and Repel at level 1. They also have the at-will powers Arcane Missile and Ray of Frost. All of these are single target powers. Or, at least, until you can use the Mastery slot. I don't know if Wizard is the only class to not start with any AOE powers at all but I think it is wrong. The first AOE power that becomes available is Icy Terrain at level 4. This could be easily fixed by moving Repel or Entangling Force to level 4 and moving Icy terrain to level 1.
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