The Necromancer is a master of death and the undead, and possesses scores of new and unique spells designed to control and mimic the undead, and enter their haunted crypts and graves. He has more than 75 new spells including Funeral Shroud, Living Death, and Kiss of the Vampire. The pdf is 20 pages.
The Witch is an outcast from society, weaving malevolent magic in order to take her revenge on those who have wronged her. She has more than 50 new spells, including Hand of Glory, Blight Field, and Candle Magic. The pdf is 26 pages.
Each can be introduced into your campaign either as a villainous NPC or, if you choose, as a new character class for your players. Each costs $5 individually, or you can buy both together for $8.