- Demons are occasionally called "Minions of Darkness" or "forces of darkness".
- Darkness and Evil are often interchangeable terms.
- Demon Hunters use the power of Hatred to power their abilities, often referring to their power as Darkness.
- Crusaders take the vow to "fight Darkness". Symbolically, they play a role of light that pierces darkness of the world. They also occasionally refer to death as being claimed by Darkness.
- "Dark" is an adjective frequently used for titles, e.g. Dark Horadrim or Dark Wanderer.
- Darkness and Shadow are often interchangeable terms.
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