User with this ability either is or can transform into a strix (Albanian: shtriga, Italian: strega; Romanian: strigoi, Polish: strzyga), a troubled soul of the dead rising from the grave, although some can be living people with certain magical abilities. They have the ability to transform into an animal (depending of the region), invisibility, and the propensity to drain the vitality of victims via blood loss. There are several types of strix, with varying abilities and appearances depending of the region they come from: Strigoi are from Romanian and divided into three types: