Undying

Zombies
Zombies cannot be controlled. Zombies will not spawn to attack buildings. Zombies will not spawn in fog of war.

Trivia

 * Undying was originally an Intelligence Hero and had Heartstopper Aura now belonging to Necrolyte. His skillset was completely changed upon becoming a Strength Hero.
 * Undying references to several special infected, several campaigns and even the title of the Left 4 Dead series.
 * Undying also references the Half Life series in a rival line towards Tinker. Dr Kleiner, whom shares his voice actor with Tinker, has a pet headcrab called Lamarr. Headcrabs are small, parasitic creatures, whom attach themselves to the head of their victims, after which the victims turn into zombies.
 * Undying's invoker response is a reference to the 6.72's leaked changelog, where Invoker's name 'Kael' had been mistakenly translated into 'Carl'.