Pteraspis Boss

It lives only in the Frantic Bay and has a even harder shell than its young form. It is the leader of a whole swarm and defends its territory from rivals and enemies. Because of its size it even eats ludroths in whole but also smaller fishes. It has a much higher concentrated poison it injects with its spikes. It has some predators like the Lagiacrus or the Dunkleosteus. After some time a young Pteraspis sheds its shell and replaces it with a skull of a Lagiacrus or Dunkleosteus to repel smaller carnivores and, because they're much harder than its usual shell, to protect its head. The weakness is dragon, then wind. It's the adult form of the Pteraspis (Minion).

Possible attacks: (Post some attacks)

 * 1) Several charge attacks (water blight)
 * 2) An attack where it bows down its head to attack you with its stings
 * 3) A bite with its Lagiacrus or Dunkleosteus skull
 * 4) A sucking attack (similar to Gobul's or Yama Tsukami's)

Breakable parts
are its upper tail fin, its back with stings and the lower tail fin can be cut off. The Lagiacrus skull can be broken twice with hammer. The Dunkleosteus skull can be broken twice with hammer, too.

Possible materials
"name" Shell, "name" Scale, "name" Big Tail Fin (carved from lower tail fin), "name" Small Tail Fin (when upper tail fin broken), "name" Sting (when broken), Lagiacrus Horn (only when the Lagiacrus skull is broken twice), Lagiacrus Skull (same as horn, very rare!), Dunkleosteus Fang (only when the Dunkleosteus skull is broken twice), Dunkleosteus Skull (same as fang, very rare!), "name" Fin, "name" Skull (when skull is broken twice, equal which is on)