Revelation 12:3-4
And there appeared another sign in heaven; and, behold! a great fiery dragon, having seven heads and ten horns, and upon his heads seven crowns.
Revelation 12:16-17
and the earth opened its mouth, and drank up the flood which the dragon threw out of his mouth.
Revelation 13:2
And the beast which I saw was like a leopard, and its feet were like those of a bear, and its mouth like the mouth of a lion; and the dragon gave it his power, and his throne, and great authority.
Revelation 13:4
and they worshiped the dragon who gave authority to the wild beast, saying, Who is like to the beast? who can war against it?
Revelation 13:11
And I saw another beast ascending out of the earth, and it had two horns like a lamb: but it spoke like a dragon.
Revelation 16:13
And I saw, and out of the mouth of the dragon, and out of the mouth of the beast, and out of the mouth of the false prophet there came forth three unclean spirits, like frogs:
Revelation 20:2
And he laid hold on the dragon, that old serpent, who is the Devil, and Satan, and bound him for a thousand years;