Buttresses seem to be formidable units, since Frenemy uses them as mounts for some of their warlords. At least two Buttresses were part of the flying force of Frenemy and Quisling units that invaded the airspace of the City of Goodminton. Both were shot down - along with their mounted warlords - by Delphie using air defense spells of Minnow Tower.IPTSF Text 20
Real World References
The name of this unit may refer to the flying buttress - an element of Gothic church architecture.