Siege Ship
A Storm on Cobas Haven#126 (x3/x2)
Ship-Enemy
(46) 2 5 5 7
Corsair.   Ship.  

Archery 2. Cannot have attachments.

While Siege Ship is in the staging area, it gains: "Forrced: at the end of the quest phase, if Siege Ship is not guarding an objective and there is an unguarded objective in the staging area, attach Siege Ship to that objective, guarding it."