Melf's Acid Arrow

Source: Player's Handbook (2024)

2nd Level Evocation (Wizard)

Casting Time: Action Range: 90 feet Components: V, S, M (Powdered rhubarb leaf or Adder's stomach) Duration: Instantaneous

A shimmering green arrow streaks toward a target within range and bursts in a spray of acid. Make a ranged spell attack against the target. On a hit, the target takes 4d4 Acid damage and 2d4 Acid damage at the end of its next turn. On a miss, the arrow splashes the target with acid for half as much of the initial damage only.

Using a Higher-Level Spell Slot.
The damage (both initial and later) increases by 1d4 for each spell slot level above 2.