Attacks that cost 0 deal 4 additional damage.
It affects any 0 cost Attack cards, regardless of class. As a result, cards like Anger , Claw , or Flurry of Blows when obtained from Prismatic Shard do work with this relic.
It also works with card that has its cost reduced to 0, such as cards with cost changed by Confused , Blood for Blood , Eviscerate , Streamline , or cards Retained under Establishment .
This relic is a reference to Assassin's Creed as supported by the quote "Handy for assassinations".
Patch V2.0: The Watcher
Wrist Blade relic buffed. Additional damage increased from 3 -> 4.
Patch V1.1: The Dealer
Fixed Wrist Blade not affecting Sword Boomerang, Rip and Tear, and Thunder Strike.
Weekly Patch 38: Bane
Wrist Blade relic now works with cards that are cost 0 via Setup or Forethought.
Weekly Patch 38: Malaise
Adding green boss relic Wrist Blade.