Haunted Colosseum released with Patch update 6.85b

October 30th, 20150 Valve has completed the patch update 6.85b, bringing with it a new Halloween mode, Haunted Colosseum, revamping the Custom Games overview page and releasing the second Tribute treasure for Fall Compendium owners. Enter the Haunted Colosseum https://t.co/O9I1OGwZ0w— DOTA 2 (@DOTA2) October 29, 2015 Patch update 6.85b...