Thunderbolt

Version 0.25: This article may not be up to date for the latest stable release of Crawl.

Thunderbolt
Level	2
School1	Conjuration
School2	Air
School3
Source(s)	Lightning Rod
Casting noise	15
Spell noise	0

Thunderbolt is a level 2 (effectively boostable to 5) Conjurations/Air Magic spell, but as it is only available through the lightning rod, its performance is dependent on Evocations. Each consecutive use increases the power of the spell. Additionally, consecutive shots can target an area, doing reduced damage based on the width of the arc.

Effective Spell Level: 2 + number of consecutive shots (up to 5)
Spellpower: 5 + 3 × Evocations
Damage: {Spell Level}d{(30+Spellpower/6)/(arc_length+2)}; arc_length is always at least 1
Accuracy: Automatic hit
Range: 5

See the lightning rod article for details on this spell's behavior.

History

Prior to 0.20, this spell had an MP cost paid out of the rod's MP pool, and the initial shot had an accuracy dependent on spellpower. This spell was added to the game in 0.11.

In ancient versions of Crawl, there was a level 6 Holy Magic/Air Magic spell with the same name, and followers of the Shining One also had an ability called Thunderbolt.