Descent: Eliza Farrow Lieutenant Pack - Rules of Play says:
With Lieutenant Packs for Descent: Journeys in the Dark Second Edition, you can replace the game’s lieutenant tokens and bring the overlord’s most powerful agents to life. The Eliza Farrow Lieutenant Pack features a detailed plastic figure that places its deadly operative, a brutal and bewitching vampire, on equal footing with Terrinoth’s champions. Moreover, it includes a plot deck and rules that allow the overlord to pursue devious new strategies and allow the bloodthirsty Lady Eliza Farrow to pursue the heroes’ downfall through any campaign!