Lady Geist is a close-range Spirit burst assassin in Deadlock who drains enemy health to power her own abilities. Soul Exchange and Life Drain let her trade health aggressively while staying topped up against isolated targets. Best builds combine high Spirit Power with Vitality items to survive the close-range exchange window. She excels in narrow corridors and 1v1 duels but can be burst down before completing her combo in chaotic teamfights. A strong snowball pick when fed early, and a punishing counterpick against low-mobility heroes who cannot escape her drain range.