1000 Calibur Orbital Cannon

choose a point you've seen before, you and your allies can see the area of impact before it hits but everything else can't see, after 6 seconds an orbital strike goes through the ground for the rest of the duration, anything that touches it rapidly looses health, roughly 150 damage every 6 seconds, until they are nothing, literally, it's made of Pure Antimatter.

the Orbital Cannon is a 4x4 spell, deals 10d20 Disintegrating damage, and attacks all creatures and objects, even the caster.

this spell is used like a 10th level spell