Angel of Death, also known as "AOD", will create a flying dragon out of nowhere that will eat enemy followers and the shaman. If the dragon tries to eat somebody inside a hut, the hut will be destroyed as the follower is being snatched.

 

You will unlock this huge spell in level 20, and you can only have 1 shot of it at once.

 

The Angel of Death can be destroyed by firestorm or another Angel of Death.

It can also be destroyed by 4 direct lightning stikes or if a large number of firewarriors attack it at once.

If it doesn't get destroyed, it usually goes away in ~208 minutes, or after it kills 40 units. It is possible for a good part of the tribe to be decimated with a good Angel of Death - not online though.

 

Angel of Death is rarely played with online because it has a really high cost of mana and a really cheap counter - the ghost army spell. The AoD will get distracted by this ghosts and will most likely be useless.

 

Angel of Deaths can eat bloodlusted units, but will not kill them in the first try. It also can atack units in buildings or vehicles, or any magical shielded unit. It can not discover cloaked spies, but can see and atack invisible units. 

 

The Angel of Death is not controlable, and has a somewhat random pattern (usually atacks the cosest units).

AoD's are fast, but can catch a brave (the fastest unit) after some time if they are engaged on them. A bloodlusted unit can escape this dragon though, if it has good running pattern, without changing direction many times.

 

The Angel of Death will create a splash in the terrain where it lands, after being cast, but will not change the terrain. When it dies, it explodes into a million pieces, except if it dies after ~208 seconds - in this case, he will gradually get smaller until it stops existing.

 

The Angel of death's worldview icon is a giant circle of the color of the tribe who casted it.