Driver of the Dead | Phantasmal Image | Phyrexian Altar

Cards

Driver of the Dead in any zone.
Phantasmal Image and
Phyrexian Altar on the battlefield (
Phantasmal Image as a copy of
Driver of the Dead).

Activate
Phyrexian Altar by sacrificing
Phantasmal Image, adding one mana of any color.
When
Phantasmal Image dies, it triggers, returning itself from your graveyard to the battlefield as a copy of
Driver of the Dead.
Repeat.