Minecraft Tutorial Playlist ► http://www.youtube.com/playlist?list=PLEB388783144C45A8
This video will show you how to make the ender dragon drop and elytra on death!

How To Find Spawn Chunks Minecraft 1.8 Tutorial
https://www.youtube.com/watch?v=wQrmAps0Udo&index=66&list=PLEB388783144C45A8

Minecraft 1.9 1 Server Friendly Multiplayer Sleeping Tutorial (Works On Realms)
https://www.youtube.com/watch?v=DOj_A3d9Akg&index=2&list=PLEB388783144C45A8

Minecraft: Disable Endermen Griefing In 1.9 Tutorial (One Command Block)
https://www.youtube.com/watch?v=eG48aImN_5U&index=8&list=PLEB388783144C45A8

Commands
/give @p minecraft:command_block

entitydata @e[type=EnderDragon,tag=!hasTable] {DeathLootTable:"hc:entities/customDragon",Tags:["hasTable"]}

*****ALTERNATIVE****** (Realms Friendly)
/entitydata @e[type=EnderDragon,tag=!hasTable] {ArmorDropChances:[0:1.1f,1:1.1f,2:1.1f,3:1.1f],ArmorItems:[0:{},1:{},2:{id:elytra,Count:1},3:{}],Tags:["hasTable"]}
(Big thanks to LeahLaya!)

*****ALTERNATIVE FOR 1.11******
/entitydata @e[type=ender_dragon,tag=!hasTable] {ArmorDropChances:[0:1.1f,1:1.1f,2:1.1f,3:1.1f],ArmorItems:[0:{},1:{},2:{id:elytra,Count:1},3:{}],Tags:["hasTable"]}

This doesn't require a loot table! :-)

File Location
world\data\loot_tables\hc\entities\customDragon.json

How to find your world saves folder
Type "%appdata%" into start menu search and open the ".minecraft" folder.

File Download
https://xisumavoid.com/downloads/

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Other series on my channel
Hermitcraft IV Playlist ► http://xisuma.co/hermitcraft4
Do You Know Minecraft? Playlist ► http://xisuma.co/doyouknow
Minecraft Myth Busting Playlist ► http://xisuma.co/mythbusting
Minecraft 1.9 Update Playlist ► http://xisuma.co/updates
Cities Skylines Snowfall Playlist ► http://xisuma.co/cssnow
Scrap Mechanic Playlist ► http://xisuma.co/scrapmech