Spreads existing Blood Plague and Frost Fever infections from your target to all other enemies within 10 yards.
Pestilence is a Death Knight ability that allows the Death Knight to spread his Frost Fever and Blood Plague from one target to other nearby targets within 10 yards. The major Glyph of Disease causes it to refresh the duration of diseases on the primary target before they are spread to the other targets. The minor Glyph of Pestilence can increase the range of spreading diseases by 5 yards. It costs 1 Blood Rune to cast.