Dragon Spawner

This is a dragon spawner. I did not realise it would be this good though: When a dragon spawns it destroys the spawner. Unless of course you get the VERY rare chance of spawning 4. This is just made with mc edit and does not have a world download. Schematic Only!

Additional Notes

warning! I have not done much testing on it, so there might be a few things you can't do.
warning! Sometimes the spawner is not destroyed, so it is best to have some sort of destroyer incase it spawns many.

I might be uploading some other spawner schematics, and possibly a tutorial.