Status Condition

Status conditions are effects that can be given to a Pokémon. These conditions can be afflicted by certain moves, Abilities, Orbs, traps, or certain tiles when stepped on. Pokémon can have immunities to certain or all status conditions through the use of moves, Abilities, Gems, family items, scarves, berries, and other held and consumable items. A Pokémon status condition can be healed through most of the same methods.

Non-volatile
Non-volatile status conditions will stay with the afflicted Pokémon until properly healed, like by eating a berry that heals the respective condition, or through using moves like Refresh, Heal Bell, or Aromatherapy. Pokémon with Hydration or Shed Skin can heal themselves without items, though the former requires it to be raining. Pokémon cannot be affected by non-volatile status conditions if they have the Comatose Ability. A Pokémon already afflicted with a non-volatile status condition also cannot be afflicted with another at the same time.

Burn
When a Pokémon that is inflicted with a burn makes any action besides moving, the Pokémon will take damage, and its physical attack will be halved. The damage taken depends on the user's maximum HP. Lava tiles will burn a Pokémon who is not immune to it if traveled over. Pokémon who hold a Flame Orb can also inflict the status condition on themselves if they make any action. If the Pokémon is capable of traveling on water tiles, stepping onto a water tile will heal its burn if it has one. Fire-type Pokémon are unable to be afflicted with this condition.

Freeze
When a Pokémon is frozen, they will be unable to move or act for a random amount of turns, but can still be switched out by another team member. The afflicted Pokémon is able to unfreeze manually by attacking enough times. Tiles such as the water found in Deep Winden Forest can freeze a Pokémon who is not immune to it if traveled over. Pokémon who hold a Freeze Orb can also inflict the status condition on themselves if they make any action. Ice-type Pokémon are unable to be afflicted with this condition.

Paralysis
When paralyzed, a Pokémon will sometimes fail to use attacks or items and are unable to sprint using "Shift". Tiles such as the water found in Voltaic Rainforest can paralyze a Pokémon who is not immune to it if traveled over. Pokémon who hold a Static Orb can also inflict the status condition on themselves if they make any action. Electric-type Pokémon are unable to be afflicted with this condition.

Poison
Poisoned Pokémon will take damage every two-three tiles they move. The afflicted Pokémon will not take damage from using moves or items. A Pokémon that is not currently active, will not take damage if another party member moves around the floor/map. The Petrify Orb item can inflict sleep on every enemy Pokémon that is nearby the user. Tiles such as the water found in Caustic Sewers or a Poison Trap can poison a Pokémon who is not immune to it if traveled over. Pokémon who hold a Toxic Orb can also inflict the status condition on themselves if they make any action. Pokémon that are Poison- or Steel-types or have the Ability Immunity are unable to be poisoned, but Pokémon with Corrosion are still able to poison Poison- and Steel-types. Pokémon that have Poison Heal as one of their Abilities can still get poisoned, but will be healed instead of harmed.

Sleep
Sleep acts like being frozen: a Pokémon will be unable to move or act, but can still be switched out by another party member and the afflicted Pokémon is able to wake up manually by attacking enough times. Unlike being frozen, or any of the other non-volatile conditions, being asleep makes the Pokémon vulnerable to moves like Dream Eater. The player can inflict this condition on themselves through the use of a Dreamy Orb or through the move "Rest", the latter of which heals you upon using it. The Slumber Orb item can inflict sleep on every enemy Pokémon that is nearby the user. While there are no tiles that can trigger this condition, stepping on a Slumber Trap can inflict this on a Pokémon. There are no types that are immune to being put to sleep, but Pokémon who have the Insomnia or Vital Spirit Ability, or have been hit with Uproar can not be put asleep.

Volatile
Volatile status conditions will only last for a given amount of time that a player has not transitioned to the next map/floor or wear off after a certain number of moves.

Trivia

 * It is possible for a Pokémon to spawn in certain dungeons already afflicted with a status condition. For example, it is possible to find Pokémon in Thunderstorm Forest that are paralyzed.
 * All dungeons have a chance to spawn a Pokémon that is sleeping.