Editing Yagura:SRD:Casting Spells (section)

==Concentration==

To cast a spell, you must concentrate. If something interrupts your concentration while you’re casting, you must manage the interruption with a [[Yagura:SRD:Concentration Skill#Manage Interruption|Concentration]] check. The more distracting the interruption, the higher the [[Yagura:SRD:DC|DC]], and when attempting to cast a spell you always add the level of the spell to the DC. If you fail the check, you suffer a -2 penalty to the save DC and to the [[Yagura:SRD:Casting Spells#Spell Power|spell power]]. If you fail the check by more than 5, you lose the spell without effect.  

=====Injury=====

If while trying to cast a spell you take damage, you must make a [[Yagura:SRD:Concentration Skill#Manage_Interruption|Concentration]] check [[Yagura:SRD:DC|DC]] 10 + 1 per 3 points of damage taken + spell level being cast. The interrupting event strikes during spellcasting if it comes between when you start and when you complete a spell (for a spell with a casting time of 1 full round or more) or if it comes in response to your casting the spell (such as an [[Yagura:SRD:Attack of Opportunity|attack of opportunity]] provoked by the spell or a contingent attack, such as a readied action).

If you are taking continuous damage half the damage is considered to take place while you are casting a spell. Repeated damage does not count as continuous damage.

=====Grappling or Pinned=====

If you are being [[Yagura:SRD:Grappling|grappled]] you may only cast spells without somatic components and whose material components (if any) you have in hand. Even so, the Concentration check DC is equal to the highest of your opponents' grapple checks + spell level being cast.

=====Other Distractions=====

Other distracting events can require a [[Yagura:SRD:Concentration Skill#Manage Interruption|Concentration]] check to avoid an interruption, starting at DC 5 + spell level being cast 

* DC +0 - Minor distractions (in a busy but peaceful crowd of people, in a high wind with blinding rain or sleet)
* DC +5 - Vigorous motion (riding on a moving mount, taking a bouncy ride in a wagon, on a small boat in rough water, below-decks in a storm-tossed ship, or simply being jostled in a similar fashion), violent weather (wind-driven hail, dust, or debris)
* DC +10 - Violent motion (on a galloping horse, taking a very rough ride in a wagon, on a small boat in rapids or in a storm, on deck in a storm-tossed ship, or being tossed roughly about in a similar fashion), being [[Yagura:SRD:Entangled|entangled]]