The bug
You can respawn the ender dragon using only two end crystals in survival mode.
How to reproduce
Clear out all or most of the exit portal, either by breaking it in creative mode or exploiting another bug such as MC-259670, so that you can place two opposing end crystals diagonally on the bedrock at the base of the fountain without them being teleported to the overworld (see attached screenshot)
Place the end crystals as described above
❌ The ender dragon respawn sequence begins
This occurs because the large hitboxes means each one touches two of the detection areas for end crystals on the fountain edge.
The picture shows how to position the end crystals to get this to occur.
Linked issues
is duplicated by 1
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Comments 15
If MC-11944 is fixed, then this would be impossible to reproduce without finding some other method to break portal blocks
It would be impossible in survival, but creative players can break any blocks, so it won't be an issue.
Still an issue in 1.12.2. Also, this can be used to remove a End Portal completely from the world in a normal survival world since each time this is done, the portal itself moves downwards by one block.
Still an issue even for survival players in 18w06a however the end portal can no longer be moved downwards by using two Ender Crystals so the issue is less severe.
Can confirm in 1.17.1. When you interrupt the spawn sequence by breaking one of the crystals, it generates a few end portal blocks in one of the corners of the bedrock fountain, instead of the complete portal.
Can confirm.