Build the structure and plan the spawn
Fold the soul sand into a T shape: one at the bottom center, three above it. Leave the side cells of the bottom row with air. Place two skulls on top, put on the equipment and only then install the third. Reference: Minecraft: Wither.
Regular skeleton skull costumes are not suitable. The launch occurs by building in the world, and not by crafting table recipe. While the boss is charging, move away: there will be an explosion at the end. Don't summon him near a valuable villager, warehouse or main portal.
Two phases of Java combat
Up to half health, use your bow from a distance, keep a retreat line and hard cover to the side. Halfway through, protection from arrows appears: move on to melee combat. Celestial Punishment is useful against undead; do not try to apply it to an already incompatible set without checking.
Milk removes Wither, but also removes the beneficial effects of potions. After drinking, replenish the necessary buffs if you have time. Take prepared food and a spare kit from a secure bed outside the arena. A tunnel in ordinary stone is a shelter, not a guaranteed cage.
For table, shelves and enchantment compatibility, go to the guide: Planning enchantments and avoiding expensive anvil work.
The nether star and a working beacon
Pick up the Nether star. Lighthouse recipe: star in the center, 5 glass on top and sides, 3 obsidian on the bottom row. The minimum base is a square 3×3 of suitable mineral blocks with a beacon on top in the center.
For the effect you need an open beam and payment in the interface. This instruction applies to Java: Wither Bedrock has different combat features, so tunnel heights and Java tactics are not a ready-made safe scheme for a phone or console.
To make the necessary potions, use the following recipes: Brewing basics: the brewing stand and your first useful potions.
