Gaant'Hor, vengeful lich

Immortal. Gaant'Hor enters with 3 soul counters.
{t}: Gaant'Hor deals damage equal to its power to
target creature. If it dies, exile it and put a soul
counter from Gaant'Hor to it.
Move a soul counter from an exiled creature to
Gaant'Hor: get +3/+0 until the end of turn.
{t}, choose an exiled creature with a soul counter on
it: put that creature on the battlefield with Zombie
in addition to its types and "When this creature dies,
move my soul counter to Gaant'Hor".