The End Crystal and bed explosion can kill a player with a full Protection 4 armor (if placed right), but can be survived if the player eats an Enchanted Golden Apple or wears Blast Protection 4 armor. The explosions can also be survived if the player is hiding behind some blocks or is a single block below the crystal or bed as the game has a strange mechanic where the player cannot be hit on the top of their body by an explosion but only the bottom.