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.
![Zombie Master [Fifth Edition]](http://paradoxtcg.com/cdn/shop/products/105db47b-8328-5f8c-97f3-724c3d96cb01.jpg?v=1702354940&width=1445)
