Bring Pestilence

Call upon the Horseman of Pestilence and wrack death and disease upon your target. The subject contracts a particularly terrible disease, which strikes immediately with no incubation period. Infecting the subject with this sickness is a permanent effect unless cured by magic or by succeeding two DC 20 Constitution saving throws in a row. Victims get one chance every 24 hours to make the saving throws. Each day afflicted with the sickness, the subject takes permanent drain of 1d4 CON, 1d4 STR, and 1d4 DEX each day until either cured or dead.