The Havoc Dragon is a giant silver coloured, Dragon-class monster that appears in The Denpa Men 3: The Rise of Digitoll around the time that the gate to Hades is revealed. It is a level 180 optional boss and is the ultimate superboss of this game.
Description[]
Since he uses elemental attacks a lot, it's good to bring a Denpa Men with a reflect equipment or reflect (all) antenna so they don't get damaged when the Havoc Dragon uses his fatal elemental attacks. The Havoc Dragon will use a move similar to Steroids and use a fatal critical attack to a Denpa Men that doesn't have enough health to endure. The Havoc Dragon can also surprise Denpa Men which will make them lose one turn. He also has a fatal tail whip attack. When he is caught by the Catch Antenna, he uses the move where he calls an iceberg. This can be reflected with any type of reflect. If you rent some maxed out level Denpa Men at Rental Island, The Havoc Dragon can be a good way to grind EXP.
Picture of the Havoc Dragon