Syntax: operates automatically
The concentration skill helps keep you from losing your focus when casting a
spell. A concentration check is required whenever you sustain damage while
you are attempting to cast a spell, or if you are casting defensively. The
more damage you sustain, the harder it is to maintain your concentration and
cast your spell successfully. Spell failure from a failed concentration check
will cause the caster to forget the instance of the spell they were
attempting to cast.
* The spell feat combat casting grants a bonus to all concentration checks.