Concuss

Version 0.33: This article may not be up to date for the latest stable release of Crawl.

It pushes those it hits backwards, briefly stunning them in the process. If it pushes them into a solid feature, they will instead take an additional one-quarter of any damage that pierces their armour.

The Concussion brand does the following:

Pushes targeted mobs backwards and stuns them, and dealing an extra 25% if the mob is knocked into a solid feature. ^[1]

Only spawns on Maces and Flails weapons.

Sources

Can generate randomly, or on early game uniques, such as Edmund, who often carries a flail.

Strategy

Concussion is a strong brand in closed off hallways and tight spaces, where there are more walls to hit your foes into. Can chain attacks quite well, with the stun on the knockback.

History

Added in a trunk version of 0.33.

References

↑ Solid features are any non-traversable terrain parts, including statues, walls, and trees, for some examples. .

Brands
Melee weapons	General	Antimagic • Chaos • Distortion • Draining • Electrocution • Flaming • Freezing • Heavy • Holy wrath • Pain • Protection • Reaching • Spectral • Speed • Vampiric • Venom
	Weapon type	Devious • Valour • Concussion • Sundering • Entangling • Rebuke
	Artefact	Curare • Deathbane • Dragon slaying • Reaping • Silver
Launchers		Antimagic • Chaos • Draining • Electrocution • Flaming • Freezing • Heavy • Holy wrath • Penetration • Speed
Throwing weapons		Atropa • Curare • Datura • Disjunction • Poisoned • Silver

[1] Solid features are any non-traversable terrain parts, including statues, walls, and trees, for some examples. .

[1]