Berserker Ships

Berserker Ships are seen in both the TV series as background objects, and in the game, School of Dragons.

Description
The Berserker ships are a form of Viking Longship. They all are adorned with a wooden dragon figurehead and dragon tail at the stern, painted with blue. They appear to be single-deck and single mast ships as is characteristic of a longship. The square sail is white with a stylized image of a Skrill on it. Most ships are lined with spikey shields.

In the game, School of Dragons, the Berserker ship is equipped with crossbows directly mounted to she ship, and two cannonball catapults.

Dragons: Riders of Berk
In the episode, "Twinsanity", the first Berserker ships are seen, at the introduction of Dagur the Deranged and his Berserker Tribe to the How to Train Your Dragon Franchise.

Dragons: Defenders of Berk
In the beginning of the episode, "A View to a Skrill, Part 1", the Dragon Riders fly out in search of fishermen Mulch and Bucket. They find them at the mercy of a Berserker Tribe ship under the command of Captain Vorg. While Bucket and Mulch thought the Berserker crew was in need of aid, in actuality they had discovered their Tribe's symbolic dragon: the Skrill.

More Berserker ships are seen, in conjunction with Outcast ships, in the episode, "A View to a Skrill, Part 2", after Alvin the Treacherous appears to die at sea and Dagur the Deranged takes over control of Outcast Island.

School of Dragons
The Battle Event is a multi-player activity that occurs every two hours in game. Players ride their dragons and shoot down either an Outcast Scout Ship or a Berserker Scout Ship during a timed event. The ships will fire cannonballs and arrows to damage players. Touching the ships will send players to designated recovery areas. Prizes are awarded if the players are successful sinking the invading ship.