Debuff

A debuff is a skill that lowers a character's attributes or stats and may inflict an irregular status on the character. As of patch 41, the following debuffs are present: (incomplete list)
 * Bleed - Gradually lose HP every 3 seconds.
 * Paralysis - Character cannot move, but can still attack and use abilities. The camera cannot be moved.
 * Stun - Same as paralysis, but the character cannot attack.
 * Slow - Character moving speed is reduced.
 * Silence - Characters cannot use Chi Kung skills, nor can they meditate.
 * Distraction - Attack rating is reduced.
 * Disoriented - Mouse controls are inverted.
 * Revival Aftereffects - Attributes and moving speed are decreased.
 * Weakness - Attack is reduced.
 * Lower Defense - Defense is reduced. The icon is identical to that of slow and weakness.
 * Penalty - A penalty for attacking or killing a player in a safe zone. Guard will attack you if you have this penalty.
 * Disrupted Nerves - Cannot meditate, Attack or use abilities, can still move and move camera, inversion of Paralysis.
 * Invulnerability - This grants a player invincibility and they will not receive damage. Despite seeming like a buff, attempting to use some techniques will generate the "X cannot be used due to a negative condition" error message.

Some mobs and bosses have debuffs that do not fall into any one category, such as HP/VE decreased by X%, tangled steps, and a few more.

In addition to debuffs, there are also buffs that boost your attributes and stats.