Stim-Rack

Lucius further bolsters his already superhuman speed and strength with exotic combat stimulants, a prize wrested from the gladiatorial arenas of the Dark Eldar. The stimm-rack that dumps these combat drugs into his system before each duel was implanted within his flesh by the renegade Fabius Bile, a fellow student of the black arts and pilgrim to hidden Commorragh.

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Warlords of the Dark Millennium: Lucius the Eternal