Summon your Syldrion-class insubmersible minion. Unlike the craft on which it is modeled, it will break immediately upon coming into contact with water.
Despite being an incredibly realistic replica of a Syldra-class submersible, it lacks any such aquatic capabilities. It is, however, able to hover in midair for a seemingly limitless amount of time, which is considerably more impressive.
How to obtain:
Voyages -- Subaquatic Voyages - Sea of Jade (M/R), Sirensong Sea (K)