1. Build 10 block tall walls surrounding a singular block that are made of any block (Planks work best, as they can be farmable).
2. Replace the bottom sides with Fat Mushrooms
3. Place any type of spike inside the walls
4. Place a Protector near the trap
5. Place a Trapdoor above the trap, when you open it, you should fall down
6. Replace the Spike closest to the trapdoor with Fallen Leaves (Maple is better)
, be sure to place it upside down.
7. Make a base with the entrance leading straight to the trap, make sure to leave the trapdoor open. When you actually want to get into your base, close the trapdoor.
8. Make a basement so when the enemy dies, you collect their loot