Minecraft wiki entry for Defeating_the_ender_dragon, associated text: The ender dragon has an attack strength of 15 × 7.5 with its head on hard difficulty. It is the fourth strongest direct attack of any hostile mob, topped by the vindicator, the iron golem and the ravager. In Bedrock Edition, it is tied with the wither’s dash attack making it the fifth-strongest. Therefore, the player should wear a full set of diamond or netherite armor enchanted with Protection IV. Netherite armor also helps negate the ender dragons strong knockback because of its natural knockback resistance. Wearing enchanted armor increases your chances of not dying, but it isn't necessary. Wearing an unenchanted full iron set reduces the damage on high difficulty to about 10, a diamond or netherite set reduces it to 5.