Attribute

Attributes
Every profession has 4 or 5 attributes, one of them being the primary attribute of the profession. The primary attribute of a profession is only available if the respective profession is also the character's primary profession. For example: an Elementalist/Mesmer has Energy Storage and all other Elementalist and Mesmer Attributes except Fast Casting, while a Mesmer/Elementalist has Fast Casting and all other Mesmer and Elementalist Attributes except Energy Storage.

Attributes are the cornerstone of your character's development. Their values indicate, among others, how powerful a character's Attribute Skills of the respective attribute are.

To increase the rank of an attribute you use Attribute Points (AP). The maximum possible number of AP you can have is 200. For details about how to collect AP read: Attribute Points

The maximum base level an attribute can be raised to is 12, but the final level can be modified by various methods:
 * The most common of those methods is using a Rune of the corresponding type, which give a character an attribute bonus of up to +3. Note that positive Rune effects of the same type do not stack, so having a Rune of Minor Fire Magic and a Rune of Superior Fire Magic equipped at the same time still gives +3 instead of the expected +4, because only the highest positive effect counts.
 * The second-most common method is wearing crafted Head Armor, which can give a +1 bonus to one attribute.
 * The third method is using a weapon and/or a focus item that has the ability to give a +1 bonus to an Attribute when the player uses a skill that is linked to this attribute. This ability is always chance-dependant and has a variable chance of success (10-20%). Because both the weapon and the item can have the +1 ability, there is a chance of a total +2 Attribute bonus with this method.
 * The fourth and last method to increase an attribute is only available to Necromancers and Elementalists. Necromancers have the spell Awaken the Blood, which gives them +2 Blood Magic and +2 Curses for a certain time span. Elementalists have the Glyph of Elemental Power, which boosts all elemental attributes (Air Magic, Earth Magic, Fire Magic, Water Magic) by +2 for the next spell.

All this means that the maximum Attribute Level a character can achieve is 12 + 3 + 1 + 2 + 2 = 20

Many players prefer to specialise in 2 or 3 attributes to make most effective use of points, since only 200 points can be gained by the time you reach the level limit of 20. For example, a monk dedicated to healing might decide to have 12 points in both Healing Prayers and Divine Favor, making as much use as possible out of the healing attributes that a monk posesses. This would cost 194 points in total, but allow basic healing spells to be considerably more effective; with Healing Prayers and Divine Favor both at 12 Orison of Healing will heal for 98 Health (60 from Healing Prayer and the rest from Divine Favor, which adds 3.2 health for every level) compared to a mere 20 Health with both attributes set to 0.

However, because of the quickly diminishing returns of higher attribute levels, it is a viable strategy to diversify into 4 or more attributes if a Build required doing so.

Primary Attribute/Profession Bonus

 * Divine Favor heals an ally for 3.2 health per attribute level (rounded down) whenever the Monk casts a spell on an ally (including himself).
 * Expertise lowers the Energy costs of many skills by 4% per attribute level.
 * Fast Casting reduces the casting time of all spells, though with diminishing returns.
 * Energy Storage adds +3 to the Elementalist's maximum energy for each attribute level.
 * Soul Reaping heals the Necromancer 1 energy for each attribute level whenever any creature dies nearby.
 * Strength adds 1% Armor penetration per attribute level whenever the Warrior uses a Warrior Skill on a foe.

Skill Bonus
Most skills are linked to an attribute. All of those Linked Skills' effects, or more exactly their increase from a certain base value, are directly proportional to their Linked Attribute's level. The skill description shows that effect with a green number to indicate that this is a variable, relative to the players attribute level.

All Linked Skills have an effect directly proportional to their Linked Attribute's level. This means that the increase in a certain effect of a skill, for example damage, can always be described as a certain constant number, multiplied with the linked attribute's level. For example, Flare deals 16 Fire damage at a Fire Magic value of 0. For every level of Fire Magic, its damage increases by 2. Thus, Flare's effect increase is proportional to Fire Magic's level.

However, as shown in the table below, raising an attribute becomes over-proportionately more expensive with growing attribute level, in terms of Attribute Points. For example, if these costs were directly proportionate as the effect increase is, then the total cost of an attribute level of 6 would be twice the costs of level 3; the cost factor, however, is 3.5 instead of 2. Thus it can be argued that a level 6 attribute is overpriced by a factor of 1.75 when compared to level 3.

Likewise, the cost factor from level 4 to level 12 is not 3 but 9.7, which makes a level 12 attribute overpriced by a factor of about 3.2 compared to level 4. If one calculates all of these "Overprice factors" for an attribute level and its corresponding (for example) double level (i.e. 1 and 2, 2 and 4, 3 and 6, etc.), one can clearly see that even this disproportionate increase in costs itself steadily increases.

The "over exponential" raising of attribute points per level is slightly more exponential than the Triangonal Numbers:

0,1,3,6,10,15,21,28,36,45,55,66,78

a(n) = C(n+1,2) = n(n+1)/2 = 0+1+2+...+n.

BUT it increases slightly more. The table below shows how much more per step (and absolute) compared to the Triangonal numbers.

Damage Bonus
The Damage of Swords, Axes, Hammers, Bows, Pets and Minions is modified by the weapons linked Attribute.

(The damage of Staffs, Wands and magical Projectiles is modified by a players level)

The following table illustrates how exactly the attribute level affects the damage bonus of these "physical weapons".

This is makes a signoid graph that changes its "diretion" around 12 (with 100%). It basically means, Try not to do regular attacks if you have more than 13 Attribute Skill for that weapon, because regular attacks get almost no boost beyond 13 and regular attacks are best with 12.

Attribute Point Re-assignment
At any outpost or town, a player can decrease the attirbute points allocated to one attribute and increase another attribute. This can be done any number of times. the only limitation is that it cannot be done while adventuring in an explorable area.

Simply press on the down arrow next to the attribute rank to decrease it. This will refund the attribute points allocated to that last rank back to the available attribute points. You can then use those to increase another attribute.

You can only spend attribute points you haven't assigned yet while in an explorable area - you cannot alter points already spent.

The old system of Refund Points is now defunct.

Attribute spending
The most reasonable ways to spend Attribute points on Attributes are (probably):


 * A1-A4 (and rest) are Attribute Skill Levels of any attribute (without runes).
 * Average is the average attribute level of all skills of an "average skill bar" you might use with that. This directly compares how "strong" the Green Number effects of such an attribute spending would be of your skill bar.
 * for example: [15 11 11] is more flexible, but only ~80% as strong as [16 13] - someone that just cares for maximum damage should use [16 13], tactical players are open for [14 11 9 9].
 * In general every extra attribute for more flexibility in your build means a loss of 20% in "green number power". But the flexibility gives you the coice to hit the foes weak spot more often. That nullifies the 20% less power.

also see attribute point spending