Defender Dragons are exclusive dragons that were introduced in the Dragons: Rise of Berk game with the Battle / Defend Berk update.
Defender Dragons were originally titled Battle Dragons when first introduced into the game.
Just like Exotic dragons, a Defender Dragon is shown in the Collections menu and you need to gather items or spend to get it. With each item you collect that is required for that specific dragon, the cost is reduced by a certain amount until you gather all items and get the dragon for free (But losing those collected items of course).
A player may have more than 1 of the same Defender Dragon.
Defender Dragons cannot collect Iron.
All known Defender Dragons currently in the game are listed below: