How To - Page 85

One of the very useful potions in Minecraft is the invisibility potion. It is made by corrupting potions of night vision with a fermented spider eye inside the brewing stand. Fuel this block with blaze powder if it ran out. After the process is done, you'll have potions of invisibility lasting for three minutes. You can extend them with redstone dust. Once you drink the potion of invisibility, you'll be completely invisible, except for the gear and items you're wearing and holding. If you get too close to mobs, they will still be able to see and attack you.

The Minecraft Potion of weakness is very unique, as it doesn't require nether wart. Instead, you need a brewing stand, water bottles, fermented spider eye and blaze powder. Place the water bottles in potion slots inside the brewing stand, add the fermented spider eye above them and the blaze powder on the left. The water bottles will shortly turn into weakness potions. This potion applies weakness effect that reduces melee attack damage by two hearts. So, it's better to turn it into splash potions using gunpowder, so you can throw it at other mobs and players.