You kindle a massive, sudden flame within your enemy. The fires burn your foe and spill out to singe any who stay near it.

At-Will   ✦     Arcane, Evocation, Fire, Implement
Standard Action      Ranged 10

Target: One creature

Attack: Intelligence vs. Fortitude

Hit: 1d10 + Intelligence modifier fire damage, and any creature that ends its turn adjacent to the target before the end of the target's next turn takes fire damage equal to your Intelligence modifier.
Level 21: 2d8 + Intelligence modifier fire damage.

Update (10/18/2011)
Updated in Wizard Schools article.

Published in Dragon Magazine 388.