2nd-level evocation · called Acid Arrow in the SRD 5.1 · 2024 version below
Casting time
1 action
Range
90 feet
Components
V, S, M (Powdered rhubarb leaf and an adder's stomach)
Duration
Instantaneous
School
Evocation
Level
2
Attack
Ranged spell attack
Damage type
Acid
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 immediately 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 and no damage at the end of its next turn.
At higher levels
When you cast this spell using a spell slot of 3rd level or higher, the damage (both initial and later) increases by 1d4 for each slot level above 2nd.
Acid Arrow damage by spell slot level
Spell slot level
Damage
Average
2nd
4d4 acid
10
3rd
5d4 acid
12.5
4th
6d4 acid
15
5th
7d4 acid
17.5
6th
8d4 acid
20
7th
9d4 acid
22.5
8th
10d4 acid
25
9th
11d4 acid
27.5
Averages are the dice’s expected total. Roll any row in the dice roller.
The 2024 Player’s Handbook revised many spells, and the SRD 5.2 carries the new text. What changed from the 2014 version above:
Same level, casting time, range, components, duration and dice; the text is reworded for the 2024 rules glossary.
Casting time
Action
Range
90 feet
Components
V, S, M (powdered rhubarb leaf)
Duration
Instantaneous
School
Evocation
Level
2
Classes
Wizard
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.
2024 version from the SRD 5.2. Most tables settle on one edition, so check which one yours uses.