Lightning Arrow

Level 3 Transmutation spell available to Rangers. A ranged attack for 4d8 Lightning that then bursts for 2d8 Lightning to everything within 3m of the target, and it still does half damage on a miss. A Ranger’s best single-slot damage by a wide margin.

Spell description: After the arrow hits, smaller bolts snake out from the target towards nearby creatures.

Spell properties

  • Damage: 4d8 Lightning to the target, plus 2d8 Lightning to nearby creatures
  • Damage type: Lightning
  • Range: 18m (60ft)
  • Area: 3m (10ft) radius burst
  • Attack type: Ranged weapon Attack Roll
  • Save: DEX save for the burst (half damage on success)
  • Conditions applied: On a miss, the target still takes half damage.
  • Cost: Action + Spell Slot
  • Recharge: Per action

Spell upcasting

Casting Lightning Arrow at a higher level increases both the arrow damage and the burst damage by 1d8 Lightning for each spell slot level above the 3rd.

How to obtain Lightning Arrow

  • Ranger at Class level 9

Source items: Hellfire Engine Crossbow, Scroll of Lightning Arrow

LIGHTNING ARROW

Level 3 Transmutation Spell

After the arrow hits, smaller bolts snake out from the target towards nearby creatures.

Range: 18m (60ft) Save: DEX save AoE: 3m (10ft) radius

When to cast Lightning Arrow

Fire it at the enemy standing in the middle of a group. The target eats 4d8, everyone next to it eats 2d8, and even a miss still does half to the main target. There is no bad outcome, which is rare for a spell built on an attack roll.

Lightning plays with water. Get the enemies wet with a thrown bottle or a Create Water first and the whole burst does double. It also chains to anything standing in the same puddle, so a wet corridor is your best friend.

The upcast raises both parts of the damage, so a Level 4 slot on a Ranger who has reached level 9 is worth it. Ranger slots are scarce, though. This is the spell you save them for.

Looking for more spells? Check out our full sortable and filterable list of all BG3 spells in the database.

Spell properties

Level
Level 3
School
Transmutation
Casting resource
Action + Spell Slot
Damage type
Lightning
Range
18m (60ft)
Duration
-
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Notes & sources

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Spell mechanics, descriptions and values are based on Baldur’s Gate 3 version 4.1.1.7209685 and may change with future patches. Where applicable, sources are cited within each article.

Copyright disclaimer & licensing
Some or all of this work is © Larian Studios.
Some spell icons and game data are property of Larian Studios and used here under their fan content policy. Any fan-created works using content from Larian fall under: Larian Fan Content Policy and / or Baldur’s Gate 3 Fan Content Terms. Some of the icons used in these spell cards were downloaded from Sammy8932 on NexusMods.

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