Warbands league

"Warring clans have spread throughout Wraeclast. During your travels, you'll occasionally encounter one of their Warbands - A tight-knit group of enemies who cooperate to take you down."

- Description on the official Path of Exile website

The Warbands league was a challenge league. In the Warbands league, warring clans spread throughout Wraeclast. These warbands are tight-knit groups of enemies who cooperate and use synergistic skills to take you down. At higher levels, elite and leader enemies were present, who directed their Warband in combat and could take matters into their own hands if the tide of battle turned against them. Each of the three Warbands had exclusive Unique Items that only drop from them. The presence of the warbands in Wraeclast fluctuated over time and responds to the Exiles' efforts to hunt them.

It started along with the Tempest league on July 10, 2015. Both leagues ended October 2, 2015. At the end of the league all characters and stashes were moved to Standard league. Characters that died during the four months respawned in Warbands.

Items
These unique items were exclusive to the Warbands league. After the league-end, they are simply tied to Warband monsters, but does not requires Warbands league flag: