Hi James,
I'd like to ask you what kind of action is "attack of opportunity".
I mean, I've looked everywhere on the core rulebook, but couldn't find it. Then I found on the Melee Tactics Toolbox (on the last page) that it is a "free action".
Is the tactics toolbox right or not? Maybe an error?
PS: I know it might be a "rules" question, but I'm interested more in an opinion more than anything