SPELL-JUDGE
This spell lights up the caster in a holy (or unholy) light. Your victim is judged by your diety based on their actions. They will take damage if they are of opposite alignment to the caster. The amount of damage dealt will depend on how different the caster's beliefs differ from the victim's and on the power of the caster. (You must be of diametrically opposed alignment from your foe.)
Judgement Day is a spell alias to an area-based version of Judge.
Reckon is an updated form of Judge, and Day of Reckoning is a spell alias to an area-based version of Reckon.
Save versus ethos to take half damage.