Zargon’s Insidious Grasp

An ethereal tendril extends from you. Make a melee spell attack roll, reach 220 feet. On a hit, your target takes 3d10 Psychic damage and 3d10 Acid damage, and must succeed on an Intelligence saving throw or have the Paralyzed condition for 1 minute. The tendril lasts for the duration, and you can make another attack as a Magic Action with it on each of your turns while it persists.

Using a Higher-Level Spell Slot. The damage increases by 1d10 for each spell level above 5.