. . "1"^^ . "FNV"@en . . . "Blood of the Legion is a companion perk in Fallout: New Vegas. It is a perk that is added to Rex after the quest Nothin' But a Hound Dog if you use Lupa's brain for the transplant."@en . "Blood of the Legion"@en . . . . . "+10 DT & 100 more Hit Points"@en . "Blood of the Legion is a companion perk in Fallout: New Vegas. It is a perk that is added to Rex after the quest Nothin' But a Hound Dog if you use Lupa's brain for the transplant."@en .