"The Cheyenne thirst for revenge! Cheyenne warriors do additional damage to enemy cavalry."—In-game description
Cheyenne Fury is a technology in Age of Empires III: The WarChiefs that can be researched at a Trading Post built on a Cheyenne settlement. Once researched, it increases the damage multiplier that Cheyenne Riders have against cavalry by 2.0x.
Cheyenne Fury allows Cheyenne Riders to counter enemy cavalry very effectively, although its high cost can be difficult to cope with in early Ages.