The Withered Forest is a new biome in the Nether. It is home to Wither Skeletons, the new Withered Fungus (which includes a new wood type!), and the new Blight Berries.
With Blight Berries, you can brew Potions of Decay, which grant the Wither effect. If you brew the Potions of Decay further using Glistening Melons, you can create Potions of Wither Resistance. This new potion effect will make you immune to all incoming wither damage.
