Angels possess a sense of smell, and their eyesight is superior to humans in most regards. If this connection is severed/corrupted, angels can be incapacitated and rendered unconscious. Angels do not require sleep or food, and instead draw their lifeforce from the Crystal Arch. When wounded, a substance akin to 'liquid light' has been observed to spill from an angel's wound(s). The removal of his wings was a vital part of the process, but not the catalyst for it-the removal of an angel's wings does not make that angel mortal by default. Tyrael is the first (and currently, only) angel to have ever undertaken this transformation. They can willingly forsake their immortality and become mortal, and even retain their angelic powers, but such an act does not give an angel access to humanity's latent nephalem abilities as their souls remain purely angelic, free of demonic ancestry. Īngels possess great strength far above that of a human, but some angels are stronger than others depending on their significance, their rank in the celestial chain of command, or simply their nature as an angel. Their wings radiate pure energy, and under normal circumstances, any human weapon that strikes them will turn to ash. Each angel has a unique 'sound,' per their manifestation from the Arch. Rather, angels are living manifestations of light and sound, and soar on wings of light itself. While able to be killed, angels are immortal beings and are not made of flesh and blood. The replacement angel is not born instantaneously.

Tyrael is the only known example of an angel reforming as the same individual, said reformation occurring after his destruction at Mount Arreat. If an angel is killed, a replacement angel will be created by the Arch, but such an angel is still a different individual from the one (s)he is replacing.

The amount of angels the Lightsong can give birth to is finite-it is a case of them embodying a set amount of Anu's power, and as such, every angel is said to represent one of the five aspects of Anu (valor, justice, hope, wisdom, fate), and the 'purest' of angels become archangels. Angels are birthed from the Crystal Arch, though only during moments of perfect harmony in Heaven, through a process called the Lightsong.

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