History
Rook was a mutant who worked for the Kingpin, along with two others, Knight and King. During a business transaction with the Kingpin, they prevented the assassination of Klaw by Killmonger. Kingpin wanted Killmonger executed but they saw potential in Killmonger and hired him instead. The Kingpin sent them to defeat his best mercenary, Bullseye, fully well knowing that they would lose and Rook was killed.
Powers
Rook can rapidly heal from grievous wounds, but it was not enough to save him.