Knowledge, secrets and lore on the Beholder from Dungeons and Dragons. Beholders are Lawful Evil creatures which can be used to great effect in your DnD campaigns by the Dungeon Master (DM) because they are notoriously cunning and possess incredible intelligence.
Portal to my video on Succubi:
https://www.youtube.com/watch?v=u0cXHHtZVYQ&ab_channel=TheInfiniteStaircase
7th episode in a series on monster/creature ecology from the table top role playing game (TTRPG) Dungeons and Dragons.
1st episode was on Illithids
2nd episode was on Liches
3rd episode was on Treants
4th episode was on Green Hags
5th episode was on Succubi
6th episode was on Ki-Rin
K'Varn, bearing a Horn of Orcus and metal armor plating, came through a rift from the Far Realm to the ancient underground city of Yug'Voril, where he enslaved a mind flayer colony, expanded his influence to the duergar Emberhold, and began threatening Kraghammer before he was slain by Critical Role's Vox Machina.
What they don't tell you about the Beholders. Beholders can be found throughout the multiverse and in the Forgotten Realms setting, they are often found in the underdark and the Far Realm. Enrich your adventure with knowledge you gain from this animated video. History on the Beholders from dungeons and dragons. Beholders would likely steer clear of the Nine Hells due to their hatred for all creatures other than themselves and their wish for solitude. They wouldn't stand much chance against powerful Demon Lords such as Demogorgon, Grazzt, and Asmodeus.
In Baldur's Gate 3 (BG3) a Spectator Beholder can be fought in the underdark by player characters.