There are many useful items in Minecraft that you will want to find and have in your possession, such as the Totem of Undying. This handy combat item can save your life in a pinch. When you are hit with a lethal attack, the totem will activate and restore one health point and give you Regeneration II for 40 seconds, along with Absorption II for five seconds. Pretty useful, right?
So be sure to get one in your inventory when you can, as they are quite easy to obtain as well.
Kill an Evoker
To find a Totem of Undying, you just need to kill an Evoker, a type of mob found in Woodland Mansions. Whenever you kill one, they are guaranteed to drop a totem for you.
If you are having trouble finding an Evoker, you can use a cheat to spawn them or get your hands on a Spawn Egg in Creative Mode.