The Thunder Dragon is an enemy from Final Fantasy IV.
Thunder Dragon is not a very powerful enemy, but it can hit a party member with Thunderbolt, which will take off about one tenth of their max HP each hit.
Thunder is the sound caused by lightning. Depending on the distance and nature of the lightning, thunder can range from a sharp, loud crack to a long, low rumble (brontide).
dragon is a legendary creature, typically with serpentine or reptilian traits, that features in the myths of many cultures.A