Monster(s) of the Moment
From HeRO Wiki
Monster(s) of the Moment, temporary increases the experience given of the chosen monster(s) by an increased rate! This is to motivate players to level and party up at different places.
The monster(s) of the Moment will be randomly updated, the selected monsters can have their experience increased (usually doubled, but sometimes it is more!) for a few days up to a few weeks!
Current Monster(s) of the Moment
Click the following forum link for more info: http://www.pandoraonline.net/forum/showthread.php?tid=23279