African Witch Doctor's Staff

Origin
According to African folklore an Adze is a vampiric being. In the wild they take the form of a firefly, though it will transform into a human shape upon capture. When in human form, the adze has the power to possess and hypnotize humans. Those possessed by an adze are viewed as witches and would negatively affect the people who lived around their host. The most likely targets are considered to be women with brothers (especially if the brother's children fare better), older people and the poor. In firefly form, the adze would pass through closed doors at night and suck blood from people as they slept. The victim would fall sick and die.

Effects
Can summon and control a swarm of mosquitoes carrying an incurable form of malaria.