Conditions
Source: Player’s Handbook (2014), p. 289
Conditions alter a creature’s capabilities in a variety of ways and can arise as a result of a spell, a class feature, a monster’s attack, or other effect. Most conditions, such as blinded, are impairments, but a few, such as invisible, can be advantageous.
A condition lasts either until it is countered (the prone condition is countered by standing up, for example) or for a duration specified by the effect that imposed the condition.
If multiple effects impose the same condition on a creature, each instance of the condition has its own duration, but the condition’s effects don’t get worse. A creature either has a condition or doesn’t.
For a full list of the conditions, see the conditions page. The conditions are:- blinded - charmed - deafened - exhaustion - frightened - grappled - incapacitated - invisible - paralyzed - petrified - poisoned - prone - restrained - stunned - unconscious