Celestial Beam

A Pure ligth bean falls from the sky on a cilinder whit 30 foot radius it Also targets flying creatures and creatures underground that are at least 20ft near the surface it doesnt have high limitation.

Creatures must suceed a constitution saving throw or take 30d10 + 50 radiant damage half as much on a sucess to creatures in that area non carried objects and stroctures made of flamable substances desintegrate, this dont aply to mágical objects.

Creatures killed by this spell desintegrate as if killed by the desintegrate spell. 

The area where this is casted sheds dim ligth for 1 week after the casting and deals 1d6 radiant damage to undead and demons each turn.

If casted for 30 days on the same spot the Terrain effect becomes permanent.