Horizon Zero Dawn Complete Edition · Skill
Silent Strike
A stealth ability that silently kills a nearby enemy when Aloy is hidden; against later robots it instead knocks them down temporarily.
How it works
The skill guide says abilities are unlocked using skill points earned from leveling up and completing certain missions. It describes Silent Strike as an attack that instantly and silently kills a nearby enemy when Aloy is hidden. The same passage qualifies the effect: later robots are not killed by the attack, but are knocked down for a period of time.
Read the supporting references
Check the edition and source version for patch-specific details. Guide methodology.