This exploit will allow you keep the most dangerous enemy out of the fight while you clean up the mobs.
When you trigger a conversation before a fight, don't end the conversation, now you switch to your other characters, you can freely walk into the enemy sight without triggering the combat. You can teleport your own characters including the one currently in conversation, move around, position your team, as long as you don't touch the enemy, it won't trigger the combat for those who are in the conversation.
So pick one useless character, use it to trigger the conversation, use the other 3 characters to kill the mobs, then whenever you are ready, end the conversation and finish it off.
