The Core Coliseum has been a long standing tradition of the Wizards Boards. Now in group format, the Core Coliseum is up and running 4e fights each week. However, we are always in need of more players and diverse ideas.
Currently, the Core Coliseum features teams of two characters of the same level paired off against other teams of two characters. We also have limited games of three team free-for-alls and short 4-encounter quests to test out your builds. Most teams start at level 1 and the system allows for leveling all the way to paragon and, later, to epic levels.
Come check out the CoCo for the first time, or all over again, as much is new and changed in the last month. The Core Coliseum allows builds from both Player's Handbooks as well as the monster races from the first Monster Manual.
If you have any questions - feel free to shoot me a PM, drop a comment to this post or simply join the group and post to our forums there.
Hope to see you soon. Good gaming everyone.