Death Wind

If you lose concentration the spell is cancelled and you lose 12d12 hitpoints.

You concentrate on the powdered Ichor bone and create a deathly wind that reaches 180ft around you and affects every creature but you. 

Each creature caught in the Death Wind Spell must make a dexterity save if they fail the chosen effect of the spell triggers on them.

You can have this spell cause 1 of these effects:

It deals 4d12 necrotic damage to that creature.

It deals 1d10 necrotic damage and gives that creature disadvantage on all future rolls for 3 rounds.

It deals 1d4 necrotic damage and give that creature disadvantage until its next long rest and gives it a temporary modifier of -2 to each ability score.