Dragonrend

Uttering the magical incantations, a wave of force blasts out of the speaker's mouth. The effected creatures are forced to contemplate their own mortality and feel existential dread. The wave is 60 feet wide and 60 feet long.

All creatures in the wave are effected. If there are not enough spell components to effect all creatures in wave, roll a percentile die with each creature in the area having an equal chance to be effected. Roll until all viable dragon teeth are consumed or all creatures are effected.

At 5th level, each effected creature loses all resistances, but not immunities. These effects are permanent. Any creature with an intelligence at 6 or lower suffers indefinite madness.

At 7th level, each effected creature loses all resistances and is made vulnerable to any damage the creature was not originally resistant or immune to. These effects are permanent. Any creature with an intelligence at 6 or lower suffers indefinite madness. Any creature with a wisdom at 9 or lower must succeed a DC 17 WIS save or suffer long-term madness for 1d10 X 10 hours.

At 9th level, each effected creature loses all resistances, is made vulnerable to any damage the creature was not originally resistant to, and is made resistant to any damage the creature was originally immune to. These effects are permanent. Any creature with an intelligence at 6 or lower suffers indefinite madness. Any creature with a wisdom at 9 or lower must succeed a DC 17 WIS save or suffer long-term madness for 1d10 X 10 hours. Any creature that was or is immortal is no longer immortal and must succeed a DC 20 WIS save at disadvantage or suffer short-term madness for 1d6 minutes.