Melf’s Acid Arrow spell icon: an arrow spraying acid
Icon by Lorc, CC BY 3.0

Melf’s Acid Arrow (Acid Arrow) 5e spell

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 levelDamageAverage
2nd4d4 acid10
3rd5d4 acid12.5
4th6d4 acid15
5th7d4 acid17.5
6th8d4 acid20
7th9d4 acid22.5
8th10d4 acid25
9th11d4 acid27.5

Averages are the dice’s expected total. Roll any row in the dice roller.

Classes that can cast Acid Arrow

ClassFirst availableSpellcasting ability
Wizard spells3rd character levelIntelligence

Acid Arrow in the 2024 rules

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.

Other 2nd-level evocation spells

Browse: all 2nd-level spells · evocation spells · acid damage spells