For the duration, you know if there is an aberration, celestial, elemental, fey, fiend, or undead within 30 feet of you, as well as where the creature is located. Similarly, you know if there is a place of object within 30 feet of you that has been magically consecrated or desecrated.
The spell can penetrate most barriers, but it is blocked by 1 foot of stone, 1 inch of common metal, a thin sheet of lead, or 3 feet of wood or dirt.
You conjure forth a glowing white tendril formed of the sinister, necromantic Dead Mists, which lashes out at a foe you can see within range. When you cast this spell, you can empower it with your own life essence by losing 5, 10, or 15 hit points when you cast it. When you do so, treat the spell slot used to cast the spell as being one level higher for every 5 hit points lost, up to a maximum of 9th level.
Make a ranged spell attack roll against a creature within range. On a hit, the target takes 3d8 necrotic damage.
At Higher Levels: If you cast this spell using a slot of 2nd level or higher, the damage increases by 1d8 for each slot level above 1st.
Grovel: The target falls prone and then ends its turn.
Halt: The target doesn't move and takes no actions. A flying creature stays aloft, provided that it is able to do so. If it must move to stay aloft, it flies the minimum distance needed to remain in the air.
You speak a one-word command to a creature you can see within range. The target must succeed on a Wisdom saving throw or follow the command on its next turn. The spell has no effect if the target is undead, if it doesn't understand your language, or if your command is directly harmful to it. Some typical commands and their effects follow. You might issue a command other than one described here. If you do so, the DM determines how the target behaves. If the target can't follow your command, the spell ends.
Approach: The target moves toward you by the shortest and most direct route, ending its turn if it moves within 5 feet of you.
Drop: The target drops whatever it is holding and then ends its turn.
Flee: The target spends its turn moving away from you by the fastest available means.