Ender Dragon

"They're paying me 5 cents for this. I have to be killed or I won't be rich." -Ender Dragon, Dragon of Heaven

The Ender Dragon is a hostile boss mob that appears in The End. She swoops at a player, destroying any blocks she passes through, except Obsidian, indestructible blocks (such as Bedrock), Iron Bars, and End Stone. Once an ender dragon is killed, an End Gateway appears in the vicinity, with a dragon egg on top. The end gateway leads to the "Outer End".

Appearance
Credit to Chipper the Crow

The Ender Dragon is black, with silver spikes going down her back. Her horns and claws are silver, and her wing membranes are black. Her eyes are like an enderman's, but much brighter.