Zombie King

Zombie King is the tenth zombie in Plants vs. Zombies 2: It's About Time that appears in Dark Ages. As a king of the zombie army, its main role is to provide support and boost morale of its Peasant Zombies. Any Peasant Zombie on screen will be granted additional toughness it provides. Meaning, the Peasant Zombie will transform into Knight Zombie.

Suburban Almanac Entry
TOUGHNESS:  Protected

Grants knight helms to nearby peasant zombies.

As Shakespeare once wrote, "Uneasy lies the head that wears a crown." And Zombie King couldn't agree more. It is incredibly difficult to get a good night's sleep with a crown on your head. That thing is all kinds of uncomfortable.

Trivia

 * It is the only zombie who doesn't have its speed listed on its Suburban Almanac Entry.
 * It is the second zombie who provides support with Dr. Zomboss being the first one.
 * Dr. Zomboss' way of providing support is that he'll compress all zombies that he summoned in one square with the zombie with a least toughness or so will be the leading one. This provides him enough time to evade or to charge forward.
 * William Shakespeare's passage "Uneasy lies the head that wears a crown" is a reference to the first scene of the third act of Henry IV.
 * It only implies that King Henry IV should've not seized the throne from Richard II and had him murdered.
 * If you look closely you can see it is crushing another zombie.
 * It is possible that it is carried on screen by this zombie before squashing the zombie. This would also suggest why it does not have a speed listed (It doesn't move once it is on screen).
 * It also is a possibility that the zombie under it had a horn to show it coming, as kings in the past often had horns play opon their arrival. A damaged horn can be seen the crushed under it.