Shell Shock

Acquisition
Skill trainers
 * Eye of the North
 * Micah Fergson (Eye of the North)
 * Sida (Gunnar's Hold)
 * Ybbob (Rata Sum)

Trivia

 * "Shell shock" is a slang term for combat stress reaction, first used during World War I. The term is widely used in pop culture, including as an exclamation uttered by Teenage Mutant Ninja Turtles.
 * The skill icon resembles the icon of the ranger skill Body Shot.