Mobile Fortress

A Mobile Fortress is, as the name suggests, a large fortified unit capable of movement, deployed by certain magic-side factions.

Principles
Most Mobile Fortresses are capable of flight, with some able to submerge themselves.

The capabilities of a mobile fortress are partly determined by the role it was designed to fulfill and some possess limiters to prevent them from exceeding their designed capacity.

List of Mobile Fortresses

 * Fly in the Heavens
 * Glastonbury
 * Griffin Sky
 * Hotel Aerial
 * Queen Mermaid
 * Selkie Aquarium