The Windwalker features a new and unusual faction, with Ithaqua, the god of Outer Space. His faction is most powerful in the late game, when his mighty army, fueled by his Sweeping Winds, Howl, and Ice Age spellbooks and abilities, dominates play. He also features the dread Gnoph-Kehs, strong monsters whose cost lessens the more numerous they become, setting up a feedback loop that forces other players to take note.
Ithaqua himself is usually the last Great One One to be awakened, but before that time, Rhan-Tegoth's proves a useful and durable ally. If you are more interested in late-game prowess than early building, this is the expansion for you.
