The Nether is hostile. Bring fire resistance potions (from brewing), a good sword, and a bow. Ghasts will shoot fireballs, Piglins are neutral unless provoked (or if you open a chest without gold armor), and Blazes are found in Nether Fortresses. Always mark your portal's location with torches or a compass.
Minecraft
Navigating the Nether
Navigate the treacherous Nether in Minecraft with fire resistance potions, a strong sword, and a bow. Avoid provoking Piglins and watch out for Ghasts and Blaz.