Is there a regular rotation for scheduled war helps?I

[VeryQuietly]

There is.

Outlined here: Guide: War Rule Rotation -- NEW

And on most/all the community created calendars. Sept calendars, for example, are found here:

September 2021 TENTATIVE Calendar (Events: Trials, Rare Quests, Mirages Of Omega, League of Villains, Ninja Tower, Masquerade, Atlantis Rises, Valhalla Forever, S4: Voyagers Of The Underwild, Mythic Titan, and Riddles In Wonderland)

Here is the Tentative September 2021 Calendar of Events in multiple formats, including the quick reference Many thanks to the collaborators for their time and efforts… Guvnor, littleKAF, Very Quietly, birksg, Markpessan, VEIVE, christie, ratabboypda, Kiiro, ColdHands, and W01fheart If you notice any errors please let us know so we can get updated versions posted. As with all E&P calendars, featured heroes are tentative. Dates are also tentative and may be changed (notably the rare quests whi…