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 - $12.30
NM-Mint Non English - $12.30
Lightly Played - $11.70
Lightly Played Non English - $11.70
Moderately Played - $11.00
Moderately Played Non English - $11.00
Heavily Played - $9.80
Heavily Played Non English - $9.80
Damaged - $8.00
Damaged Non English - $8.00