This answer only lists unlisted effects of conditions that could apply to practically any character and does not include class-specific examples, race-specific examples, or other similar things. The fact that a Barbarian cannot benefit from Danger Sense while Incapacitated is an example of something that is not included here. Some of the things below are also *extreme* technicalities; I opted to include everything I found instead of trying to make some sort of cutoff. ---------- * Grappled 1. Technically, being grappled also affects the *grappler* since [their speed might be halved][2] (depending on creature sizes). * Incapacitated 1. An incapacitated creatures does not count towards flanking. 1. An incapacitated creature [does not cause disadvantage on ranged attacks in close combat][1]. 1. An incapacitated creature can [automatically be grappled][2] and [automatically be shoved][3] 1. An incapacitated creature [loses concentration on spells][4]. * Invisible 1. An invisible creature [can always try to hide][5] * Prone 1. The prone condition does not describe what [crawling][6] actually means. 1. A flying creature that is knocked prone [falls unless it can hover or is flying by magic][7] 1. A mounted creature that is knocked prone, [must make a saving throw][8]. 1. If your mount is [knocked prone, you can use your reaction to land on your feet][8]. * Unconscious 1. An unconscious creature [can be stabilized][9] [1]: https://www.dndbeyond.com/sources/basic-rules/combat#RangedAttacksinCloseCombat [2]: https://www.dndbeyond.com/sources/basic-rules/combat#Grappling [3]: https://www.dndbeyond.com/sources/basic-rules/combat#ShovingaCreature [4]: https://www.dndbeyond.com/sources/basic-rules/spellcasting#Concentration [5]: https://www.dndbeyond.com/sources/basic-rules/using-ability-scores#Initiative [6]: https://www.dndbeyond.com/sources/basic-rules/adventuring#ClimbingSwimmingandCrawling [7]: https://www.dndbeyond.com/sources/basic-rules/combat#FlyingMovement [8]: https://www.dndbeyond.com/sources/basic-rules/combat#MountingandDismounting [9]: https://www.dndbeyond.com/sources/basic-rules/combat#StabilizingaCreature