Disrupt Undead

Your hand is wreathed in shimmering magic that disrupts the necrotic energies of the undead. Make a melee spell attack against an undead creature. On a hit the target takes 1d8 force damage and it can't take reactions until the start of its next turn.

This spell's damage increases by 1d8 when you reach 5th level (2d8), 11th level (3d8), and 17th level (4d8).