The Archive of Esoteric Secrets

Jackdaw's Nevermove

4-level Necromancy

A clawed bird foot flies from your hand in a line 30 feet long, and 5 feet wide. Each creature the claw hits takes 1d6 necrotic damage, plus 1d6 slashing damage.   Once the claw reaches the end of the line, it returns, stopping at the first creature in comes into contact with. That creature must succeed on a Constitution saving throw or take 3d10 necrotic damage and be restrained until the end of your next turn. A successful saving throw halves the damage, and the target creature is not restrained.
 
At higher levels: When you cast this spell using a 5th-level spell slot or higher, the initial and final necrotic damage of the spell increases by 1d6 and 1d10 respectively for each spell slot level expended above 4th.