* produces a strong concussive sound that can kill a human at close range
* gets its power from Thor himself
* can be in colors blue purple and red
* when eggs hatch they make a sound so loud it rattles the sky
* show the thunderdrum he can trust you or give him dragon nip to relax.
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Dragon info
RandomIf u wanted to know more about the dragons in how to train your dragon here it is ,please comment on what other dragons you want me to do.