We ran into what seemed to us as an unclear area of the rules.
A character provoked an Attack of Opportunity. The baddie had this:
Grave Touch (Sp): As a standard action, you can make a melee touch attack that causes a living creature to become shaken for a number of rounds equal to 1/2 your wizard level (minimum 1). If you touch a shaken creature with this ability, it becomes frightened for 1 round if it has fewer Hit Dice than your wizard level. You can use this ability a number of times per day equal to 3 + your Intelligence modifier.
Can Grave Touch be used as an Attack of Opportunity? We had three basic interpretations at the table, not sure which of the three (if any) was correct...
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1) One interpretation of the rules was since it says you can "make a melee touch attack", and an Attack of Opportunity is a melee attack, it was ok to use as an attack of opportunity.
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2) Another interpretation was that because it's a spell like ability, it cannot be used as an Attack of Opportunity.
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3) Yet another interpretation was that it could not be used as an Attack of Opportunity because it is "As a standard action". Attack of Opportunity does not allow a "standard action" per se, but only specifically a plain ol' melee attack.
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We were able to deal with reasoning and table decisions. What I'm looking for here is an official Paizo position on this.
I've done a lot of searching and cannot find anything from Paizo that clarifies this. Please let me know if you have somewhere that Paizo does clarify.
Thanks!