The Soulreaver

Deathtouch, Hexproof, Coalesce (When you cast
this spell, you may sacrifice any number of spirit you
control. This spell cost {1} less to cast for each spirit
sacrificed this way.)
Whenever a non-spirit creature dies, put a +1/+1
counter on The Soulreaver.

"The Soulreaver came to this world during the
Shattering, when king Alvord tore the veil between
this world and the land of the dead."