# Conditions 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. The following definitions specify what happens to a creature while it is subjected to a condition. - [[Blinded]] - [[Charmed]] - [[Contamination|Contaminated]] - [[Deafened]] - [[Exhaustion]] - [[Frightened]] - [[Grappled]] - [[Incapacitated]] - [[Invisible]] - [[Paralyzed]] - [[Petrified]] - [[Poisoned]] - [[Prone]] - [[Restrained]] - [[Stunned]] - [[Unconscious]]