gfunk said:Most people would agree that any feat that applies to melee attacks applies to AoO as well. So I would say that both Knockdown and Cleave could be used with AoO.
PHB, page 122.
Making an AoO: An AoO is a single melee attack, ...
kramis said:Is using cleave a standard or full round action?
kramis said:Guess I have to be more specific to avoid the nitpickers. By standard action I meant can it be done during a standard action, which by your description it can (i.e. it's "free").
kramis said:You seem to be a bit "meaning challenged", or maybe you are just ornery.
kramis said:It seems pretty obvious that I meant "does using the cleave feat require a full round action, or can it be used as part of a standard action (and thus during a partial action)"