|Habitat|| Around Fan Geysers (during a Stage Battle)|
|Disposition|| Passive (flies away if attacked repeatedly)|
|Special Features||Must be driven off Fan Geysers they are attached to in order to access the Fans there|
These creatures swoop down at the start of stage battles, feeding off of the Fan energy that rises to the surface whenever rock is nearby. They cannot be attacked by avatars without fan reprisal. Instead, units must be commanded to defeat them. As they grow weaker, they will be visibly bloodier, before eventually flying away.
The Fan Leeches are introduced in mission "Fists Shall Fall" and are encountered in every stage battle afterwards. Despite their need for Fan energy, they do not interfere with Ironheade's geysers during "Battle for Bladehenge".
When a deathmatch begins, they are seen swooping down on the Fan Geysers. They function in an identical manner in the single player campaign.
- Flying Fan Leeches can be seen during the mission "Welcome to the Age of Metal" when the player is descending the corpse pile on the back of an Overblesser.