Special abilities are extraordinary, spell-like, or supernatural.
Extraordinary Abilities (Ex): Extraordinary abilities are nonmagical. Effects or areas that negate or disrupt magic have no effect on extraordinary abilities. Extraordinary abilities have a default action type of Free Action.
Spell-Like Abilities (Sp): Spell-like abilities, as the name implies, are spells and magical abilities that are very much like spells. Spell-like abilities are subject to spell resistance and dispel magic. They do not function in areas where magic is suppressed or negated (such as an antimagic field). Spell-like abilities have a default action type of Standard Action. Spell-like abilities must have defined caster levels, and require Concentration checks as if they were spells.
Supernatural Abilities (Su): Supernatural abilities are magical but not spell-like. Supernatural abilities are not subject to spell resistance and do not function in areas where magic is suppressed or negated (such as an antimagic field). A supernatural ability’s effect can be dispelled if the duration is longer than instantaneous, but a supernatural ability is not subject to counterspells. Supernatural abilities have a default action type of Standard Action.
Abilities use their default action types unless they indicate otherwise.
|Table: Special Ability Types|
|Attack of opportunity||No||Yes||No|
Dispel: Can dispel magic and similar spells dispel the effects of abilities of that type?
Spell Resistance: Does spell resistance protect a creature from these abilities?
Antimagic Field: Does an antimagic field or similar magic suppress the ability?
Attack of Opportunity: Does using the ability provoke attacks of opportunity the way that casting a spell does?