Fear

Fear is one of the critical effects that Geralt can cause if he uses signs. It paralyses his opponent with fear momentarily.

Fear boosters

 * Axii
 * Igni

Opponents with immunity

 * Alps
 * Archespores
 * Armored hounds
 * Barghests
 * Bruxae
 * Drowned dead
 * Drowners
 * Echinopsae
 * Fleders
 * Frighteners
 * Garkains
 * Golems
 * Greater brothers
 * Hellhounds
 * Kikimore queens
 * Kikimore warriors
 * Mutant assassins
 * Nightwraiths
 * Noonwraiths
 * Royal wyverns (mostly)
 * Wraiths

Opponents with susceptibility

 * Dogs
 * Zeugls (presumably)

Weapons which cause fear

 * King and Queen

Angst Peur Paura Strach