Totem of Undying

"... The Woodland Mansion houses many treasures worth the risk - not least of which resides within the robes of the Evoker himself. Best him in combat and he will drop a Totem of Undying - a magic relic that, if equipped during some fatal calamity, will bring the player back from the brink of death!"

- Marsh Davies

The totem of undying is an uncommon item that can save a player from death.

Evokers
Evokers always drop one totem of undying when killed. but they are quite rare to find, but can be found in the woodlands mansion

Usage
If the player is holding a totem of undying in their off-hand or main-hand slot and receives otherwise fatal damage, the totem prevents the player from dying. The totem of undying must be in the player's off-hand or main-hand for it to work — it does not work if it is in the hotbar, unless selected. The totem can be used only once; it disappears after use. It does not save the player from death caused by void damage (and, by extension, the command).

Effect
When activated, restores, removes all existing status effects, then grants 40 seconds of II, 45 seconds of  II and 5 seconds of  II. An animation shows the totem of undying appearing to hover in front of the player's screen, similar to the animation seen when a player encounters an elder guardian.

Trivia

 * If a mob holds a totem of undying, the mob also resurrects upon death and the sound effect plays. However, the animation does not appear.
 * In Bedrock Edition, if an undead mob holds a totem of undying, they resurrect upon death, but rapidly take damage because of the Regeneration effect.