There are up to 4 or 5 dragons of the end

when entering at last there are 4 to 5 dragon

Steps to Reproduce:

1. [Step 1]
2. [Step 2]
3. [Step 3]

Observed Results:
you enter at the end and find 5 dragons and kill one and the others are still alive

Expected Results:
That only 1 dragon
Screenshots/Videos attached: [please attach an image or short video]

Notes: