I don't know if this has ever been suggested (can't remember) and I don't know if it could be done. But it would be nice to have a "guest" opponent in battle quests. I know that at the 5th, 10th 15th, 20th and 25th turn there are "special" opponents, but they are the same ones now. The opponent could appear at the beginning of the month and change from month to month and they would not drop special loot while in battle quests. Just need a change.