Helmet of Time (5e Equipment)
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Wondrous Item (helmet), legendary (requires attunement)
This metal helmet was created millions of years ago by the time god Tempar. He used it for years, but when he learned that his presence on the planes made linear time impossible, he retreated past the veil and left this helmet to one of his followers.
This helmet has 4 charges. You can spend 1 charge to rewind time a few seconds for 1 of 3 purposes.
-you may reroll a failed melee attack role with advantage
-you may reroll a failed saving throw or ability check with advantage
-you may force an opponent to reroll a melee attack against you with disadvantage
The helmet regains 1d4 charges each night at midnight.