The drop rate of mounts in raids and dungeons varies depending on the content's age and difficulty level. Legacy content's mount drop rate is approximately 1%, regardless of the difficulty setting. However, in current expansion raids, specific mounts drop with a 100% rate for one or two players on the Mythic difficulty, but this rate falls to 1% once the expansion cycle concludes. Additionally, the final raid of any given expansion usually features a mount drop guaranteed for all players who successfully defeat the final boss on Heroic difficulty or higher. However, this mount remains obtainable only until the release of the following raid in the subsequent expansion.