uncommon cursebound evocation fire oracle 

Mystery flames

Cast [>>] somatic, verbal

Range 30 feet; Area up to two 5-foot bursts that don't overlap

Saving Throw basic Reflex

You call forth a storm of whirling flames, engulfing all creatures in that area and dealing 5d6 fire damage with a basic Reflex save.

Heightened (+2) The damage increases by 3d6, and you can add another nonoverlapping 5-foot burst to the area.

Advanced Player’s Guide, page 234.