A placeable item that lets players respawn in the Nether, where setting respawn points with beds is impossible. Its crafting recipe is six crying obsidian and three glowstone. It requires a glowstone to charge for a single respawn attempt. Interestingly it can be shared with multiple players. Charging a respawn anchor in the Overworld can cause a fatal explosion which is more powerful than creepers and can ignite nearby blocks.
For the next updates, I hope that respawn anchors can also be used in the End, or any dimensions where the concept of day and night cycle do not exist.