Mardorus ,The Unkillable

Double strike, Deathtouch, Lifelink
When Mardorus enters the battlefield return four target creatures from your graveyard to the field,
when Mardorus leaves the field, or those creatures are put to graveyard, exile them instead
{b/r}{3}-return a creature in your graveyard to the battlefield
"Death does not relieve you of duty"