Recently one of my players has become very fond of using trip for their attack of opportunity. While I understand that the rules allow this it brings up the question then of when does the attack resolve? If say it's an archer provoking and she trips the archer, does the archer still make the first attack that provoked or is their action then canceled?
Follow up to that, if a spellcaster provokes and they are tripped do they make a concentration check?
