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You are particularly good at focusing your mind.
You must make a Concentration check whenever you might potentially be distracted (by taking damage, by harsh weather, and so on) while engaged in some action that requires your full attention. Such actions include casting a spell, manifesting a power, concentrating on an active spell or power, directing a spell or power, using a spell-like or psi-like ability, or using a skill that would provoke an attack of opportunity. In general, if an action wouldn’t normally provoke an attack of opportunity, you need not make a Concentration check to avoid being distracted.
If the Concentration check succeeds, you may continue with the action as normal. If the check fails, the action automatically fails and is wasted. If you were in the process of casting a spell, the spell is lost. If you were in the process of manifesting a power, the power points are lost. If you were concentrating on an active spell or power, the spell or power ends as if you had ceased concentrating on it. If you were directing a spell or power, the direction fails but the spell or power remains active. If you were using a spell- or psi-like ability, that use of the ability is lost. A skill use also fails, and in some cases a failed skill check may have other ramifications as well.
The table below summarizes various types of distractions that cause you to make a Concentration check. If the distraction occurs while you are trying to cast a spell, you must add the level of the spell you are trying to cast to the appropriate Concentration DC. If more than one type of distraction is present, make a check for each one; any failed Concentration check indicates that the task is not completed.
|10 + damage dealt||Damaged during the action.2|
|10 + half of continuous damage last dealt||Taking continuous damage during the action.3|
|15 + power level||Attempting to manifest a power without its display.|
|Distracting spell or power’s save DC||Distracted by nondamaging spell or power.4|
|20||Gain psionic focus.|
|10||Vigorous motion (on a moving mount, taking a bouncy wagon ride, in a small boat in rough water, belowdecks in a stormtossed ship).|
|15||Violent motion (on a galloping horse, taking a very rough wagon ride, in a small boat in rapids, on the deck of a storm-tossed ship).|
|20||Extraordinarily violent motion (earthquake).|
|20||Grappling or pinned. (You can cast only spells without somatic components for which you have any required material component in hand. You can manifest powers normally unless you fail your Concentration check.)|
|5||Weather is a high wind carrying blinding rain or sleet.|
|10||Weather is wind-driven hail, dust, or debris.|
|Distracting spell’s save DC||Weather caused by a spell or power, such as storm of vengeance.4|
|50 + spell level||Cast spell with somatic component while grappled.|
Gain Psionic Focus
Merely holding a reservoir of psionic power points in mind gives psionic characters a special energy. Psionic characters can put that energy to work without actually paying a power point cost—they can become psionically focused as a special use of the Concentration skill.
If you have 1 or more power points available, you can meditate to attempt to become psionically focused. The DC to become psionically focused is 20. Meditating is a full-round action that provokes attacks of opportunity. When you are psionically focused, you can expend your focus on any single Concentration check you make thereafter. When you expend your focus in this manner, your Concentration check is treated as if you rolled a 15. It’s like taking 10, except that the number you add to your Concentration modifier is 15. You can also expend your focus to gain the benefit of a psionic feat—many psionic feats are activated in this way.
Once you are psionically focused, you remain focused until you expend your focus, become unconscious, or go to sleep (or enter a meditative trance, in the case of elans), or until your power point reserve drops to 0.
You can cast spells with somatic components even while grappled. (See table.)
None. Making a Concentration check doesn’t take an action; it is either a free action (when attempted reactively) or part of another action (when attempted actively). Meditating to gain psionic focus is a full-round action.
Yes, though a success doesn’t cancel the effect of a previous failure, such as the loss of a spell you were casting, the loss of the power points for a power being manifested, or the disruption of a spell or power you were concentrating on.
You can use Concentration to cast a spell, manifest a power, use a spell- or psi-like ability, or use a skill defensively, so as to avoid attacks of opportunity altogether. This doesn’t apply to other actions that might provoke attacks of opportunity.
The DC of the check is 15 (plus the spell or power’s level, if casting a spell, manifesting a power, or using a spell- or psi-like ability defensively). If the Concentration check succeeds, you may attempt the action normally without provoking any attacks of opportunity. A successful Concentration check still doesn’t allow you to take 10 on another check if you are in a stressful situation; you must make the check normally. If the Concentration check fails, the related action also automatically fails (with any appropriate ramifications), and the action is wasted, just as if your concentration had been disrupted by a distraction.
If you have 5 or more ranks in Concentration, you get a +2 bonus on Autohypnosis checks.