AdventureHard
Is It a Plane?
Look at the Ender Dragon through a Spyglass
How to Complete
Bring a spyglass to the End and look at the Ender Dragon through it. Make sure to zoom in on the dragon while it is flying around.
Details
Advancement Tree
Parent Advancement
Is It a Balloon?
Look at a Ghast through a Spyglass
Child Advancements
Leaf advancement (no children)