Question: what are the most powerful dragons in how to train your dragon?
Answer: Toothless Heroic - Swift Dragon. [00:43], Lump Heroic - Furious Dragon. [01:08], Whip & Lash Heroic - Swift Dragon. [01:30], Boneknapper. [01:59], Hofferson's Bane Heroic - Swift Dragon. [02:30], Dagur's Skrill. [02:58], Catastrophic Quaken. [04:02], Triple Stryke. [05:22]