Cobaltas's Crack of Doom
(Evocation)

Range:  0
Components:  S
Duration:  Instantaneous
Casting Time:  3
Area of Effect:  20-foot radius half circle
Saving Throw:  Special

To cast this spell, the wizard raises his hands above his head, palms together. He then brings them down, out and back up again to meet above his head with a flash and a bang, combining the effects of thunderflash and thunderclap (q.v.). Effects are saved against separately.

