New the curse of Herobrine turned all the animals in horrible vampires. They become very quick, even diamond sword barely does damage. Vampirez Mod For Minecraft Pocket Edition is an addon, which can at times complicate survival in the game. It's all thanks to the new mobs. Their appearance resembles the vampires because they crave blood.
How to fight against Vampires?
It all depends on your experience. You can come up with various traps, or just to wear heavy armor and go head-on against these monsters.
For starters, we recommend you to build a house on the hills or in the depths of the earth. Thus vampires are not able to get into your house. Keep in mind, vampires are very fast, for this reason your only salvation will be water. In the water they move pretty slowly.