Casus Foederis

Casus Foederis
Information
Tier	Relic
Type	Silver sword
Source	Looted from a crypt hidden behind an illusory wall
Weight	3.11
Attributes
Effect(s)	+150 Armor piercing +15% Aard Sign intensity +15% Quen Sign intensity +50% Critical hit damage bonus +15% Critical hit chance

Casus Foederis is a silver sword introduced in the Blood and Wine expansion for The Witcher 3: Wild Hunt. It can be found behind illusory wall when entering Regis' crypt.

Associated quest

• La Cage au Fou