Orb of Fate

Wondrous item, legendary (requires attunement)

While holding the orb, you have advantage on attack rolls, saving throws, ability checks, and attacks against you have disadvantage.

Curse. The orb is cursed. Being attuned to the orb curses you until you remain unattuned to it for a period of 1 month. When you take a long rest, you are visited by apocalyptic visions of the future, whose details, meaning and significance can only be interpreted by a wyrd seer. When you finish the rest, you must succeed on a DC 21 Wisdom saving throw or gain no benefit from the rest as the visions overpower your body and mind. wildernesses, or even deep underground. Such seers are typically waiting for some catastrophic event to transpire, a warning nearby locals would do well to heed. Wyrd seers are almost never wrong about such things.