Finishing Strike
When this model causes at least one Wound to a target with this Skill, it may immediately make an unmodified STK 1 Attack against the same target, using the same Item or Skill. If there are multiple targets, choose one.
Community Answers (Discord)
Q: Does Protector work against a Finishing Strike, and does the Protector need LoS to the attack's target?
A: Finishing Strike can only be used against the Targets of an Attack. If Protector became the new Target and all attacks were redirected onto it, then only Protector is a valid model for Finishing Strike. The Protector does not need LoS to the original target. (— Dockel)
Q: What is the resolution order for an Attack with Sweep?
A: Attack roll(s) → if the Target is Hit, Sweep procs → damage roll(s) on all affected models → if at least one Wound is dealt to the Target, Finishing Strike can be used against the Target (with the possibility of another Sweep). (— Dockel)
Q: How many times can Finishing Strike trigger per activation?
A: Only once per activation sequence — "a Wound" happens only a single time. (— Dockel)
Source: Eldfall Chronicles Rulebook v1.6, p. 67.