RPGMemes

Hourglass of Lost Chances
Wondrous item, legendary (requires attunement)

This magical hourglass is crafted from a strange material, more resilient than steel, yet transparent as glass. Inside, it is empty.

As an action, you can activate the hourglass by turning it upside down and whispering the command word, "Quicksave". If you do, magical sand materializes inside the hourglass, pouring downside for the next 10 minutes. The flow doesn't stop, even if you flip the hourglass again.

While the hourglass is active, you can use one action to turn the hourglass upside down again and whisper its command word, "Quickload". If you do, the timeline is reset to the moment the hourglass was first activated. Every action and even death is undone, but all creatures in all the multiverse retain their memories of what happened, although any creature that was not within 1 mile of you at any point while the hourglass was active experiences this as a sense of déjà vu.

After 10 minutes have passed, or if you use the hourglass to revert the timeline, it becomes inactive, and it can't be activated again for the next 7 days.