I use this strategy where I make a small box at a certain height in which The Destroyer can't reach me and I have a small hole and I shoot Cursed and Crystal bullets at him but the night goes WAY TOO quick and I can't even get him down to 10,000 health! I keep wasting my gold coins on bullets and I attempt to kill him but then day comes and he disappears! And when I try to kill him with a arena or without the Box method I'm barraged by lasers and I get killed super quick! I can't beat him! I used the Box method with all crystal bullets and I STILL can't kill him!