Human
Targets the neck, with a chance of an instant kill by beheading. Worth flagging for anyone planning a low-Infamy or keep-them-alive route: an instant kill is not a reversible outcome, and characters who die stay dead. The walkthrough spends its last Activation Charge on it to close a fight, and the beheading lands — which also confirms the obvious-but-unstated point that it is charge-funded like the rest of the active abilities, and therefore competes with them for the same meter.
Named in tree coverage and since seen in play in a developer-narrated walkthrough. Its position in the tree, its prerequisites and its point cost are still unpublished.