Other Zombie creatures have swampwalk. (They can't be blocked as long as defending player controls a Swamp.) Other Zombies have "{B}: Regenerate this permanent."
He controlled the zombies even before his own death; now nothing can make them betray him.
NM-Mint - $11.70
Lightly Played - $10.60
Moderately Played - $9.40
Heavily Played - $8.20
Damaged - $5.90
NM-Mint Non English - $11.70
Lightly Played Non English - $10.60
Moderately Played Non English - $9.40
Heavily Played Non English - $8.20
Damaged Non English - $5.90