Hand of Vengeance
It is acquired by completing Heartache by the Number, Rose of Sharon Cassidy's companion quest the violent way. This is done by killing Alice McLafferty and Gloria Van Graff instead of obtaining evidence against them in order to have the NCR justice system deal with them.
- Hand of Vengeance does not have a Vault boy image, even in the G.E.C.K.
- It is possible to gain both this and the Calm Heart perk, by collecting and turning in the evidence against the two targets, and then going back and killing them.