Does anyone know the strat to beat the end dragon boss?
Break the worm spawners, and the dragon will land in the center of the map to sleep for a short time. After sleeping, all the spawners will respawn. Repeat this until the dragon dies.
If you've dealing a lot of damage, you can break some of the spawners and simply shoot the dragon out of the air.
By the way, you can build on the map with the dragon. Wooden doors help protect against worms, and wooden hatches help protect against the dragon's purple attacks, but they interfere with archery.