Conditions are often side effects of other skills, although some professions specialize in causing Conditions. Conditions may slow you down, deal damage to you, or affect your ability to cast spells or receive healing. All Conditions wear off eventually, but they can also be removed or transferred with special skills. A small, brown, downward arrow on a character's Health Bar indicates that the character is suffering from a Condition. If you are suffering from a Condition, a gold-colored icon with a golden border will appear on the upper left-hand corner of your screen.
A condition is a type of negative effect that is caused by a skill. Each condition, sometimes known as an injury or ailment, is applied via skills, either on the skill user's foes or on the skill user as a way to balance the skill. All conditions wear off in time, but can also be removed by a number of skills.
Corresponding conditions can be inflicted by the environment itself upon triggering an environment effect : Lava for example will almost always inflict burning and cripple on contact; Swamps will sometimes inflict poison on contact. A variety of traps have also been known to be able to inflict conditions, such as poison and burning from Poison and Fire traps respectively, or bleeding and cripple from Splinter Mines.
A condition is indicated in the effects monitor by a gold colored icon with an arrow pointing downwards. If a creature is affected by a condition it is also shown on their health bar by a brown arrow pointing downwards. Bleeding, poison and disease also turn the health bar into another color and deep wound turns part of it gray. Most conditions also have a visual effect on the creature itself.
Both conditions and hexes have negative effects on the affected creatures. However, there are some differences:
Hexes' effects almost always scale with the investment in the relevant attribute or rank (for PvE-only skills). Conditions, on the other hand, always have the same effect regardless of how they were applied. For example, health degeneration is constant for burning (-7), bleeding (-3), poison (-4) and disease (-4). A Spirit of Shadowsong can keep one foe blinded for a long period of time even at low Communing Investment, and a ranger constantly attacking under Apply Poison will keep a -4 health degeneration on the target even with low Wilderness Survival.
Most players find that conditions are cheaper and easier to apply/remove than hexes. This makes them less reliable than hexes, but easier to inflict and spread on the opposing team.