Spells of Eorzea

Doton

4-level Evocation

You draw out the energies of Ten to create a circle of corrupted earth on the ground centered at a point of your choosing within range. The circle has a radius of 10ft. and is considered to be difficult terrain for all creatures except for you. Creatures take 4d4 necrotic damage for every 5ft. they travel within Doton. When Doton appears, all creatures within the ring make a Dexterity saving throw, taking 4d4 necrotic damage and half as much on a failed save. You are unaffected by this damage.
At higher levels: Creatures take 1d4 more necrotic damage for each casting level above four.