Attacks that cost 0 deal 4 additional damage.
It affects all the 0 cost attacks, whether it is
Silent cards or not. As a result, cards like
Anger ,
Claw , or
Flurry of Blows obtained from
Prismatic Shard does 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".
Update History 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.
Prismatic Shard does 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
Retained under Establishment
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