5th-level · Evocation
Casting Time 1 action
Range Self
Components V, S, M (a vial of holy water that is consumed in the casting)
Duration Up to 10 minutes (concentration)
Classes Cleric, Paladin
You invoke divine powers to bless the ground within 60 feet of you. Creatures slain in the affected area cannot be raised as undead by magic or by the abilities of monsters, even if the corpse is later removed from the area. Any spell of 4th level or lower that would summon or animate undead within the area fails automatically. Such spells cast with spell slots of 5th level or higher function normally.
When you cast this spell using a spell slot of 6th level or higher, the level of spells that are prevented from functioning increases by 1 for each slot level above 5th.
Source: Deep Magic 5e · OGL/Open