Blizzard claiming ownership of every mod and custom map created for their games

> Game Editors. Certain Games include editing software (hereafter referred as “Game Editor(s)”) that will allow you to create custom games, levels, maps, scenarios or other content (“Custom Games”). For purposes of this Agreement and any agreements referenced herein, “Custom Games” includes all content created using the Game Editor(s), including but not limited to all digital files associated with such Custom Games, as well as (1) all content contained within such files, including but not limited to player and non-player characters, audio and video elements, environments, objects, items, skins, and textures, (2) all titles, trademarks, trade names, character names, or other names and phrases associated with or included within the Custom Game, and (3) any other intellectual property rights contained within the Custom Game, including any and all content, game concepts, methods or ideas. A Custom Game may only be used with the Game’s engine that is associated with a particular Game Editor. The manner in which Custom Games can be used or exploited is set forth in the Custom Game Acceptable Use Policy, the terms of which are incorporated into this Agreement by this reference. Without limiting the applicability of the Custom Game Acceptable Use Policy or any part thereof, you understand and agree that Custom Games are and shall remain the sole and exclusive property of Blizzard. Without limiting the foregoing, you hereby assign to Blizzard all of your rights, title and interest in and to all Custom Games, and agree that should Blizzard decide that it is necessary, you agree to execute future assignments promptly upon receiving such a request from Blizzard. Blizzard may modify, remove, disable, or delete Custom Games at any time in its sole and absolute discretion.

[1] https://www.blizzard.com/en-us/legal/fba4d00f-c7e4-4883-b8b9...