Arkhan the Black

Libre Mortis : {b} pay 1 Life : draw 3 Cards—
then Discard 1 Card
Nagashs Servant: each time a Khemri dies crate a 2/2 Ghoul Token, if you have
5 Ghoul Tokens or more pay1 Life and
summon a 5/5 Vampire Token.(cast this only as a sorcery)