+3 Rod of the Pact Keeper

D&D 2024 item: +3 Rod of the Pact Keeper. Source: Dungeon Master's Guide (2024). type Rod, Very Rare rarity, Requires attunement by a warlock While holding this rod, you gain a +3 bonus to spell attack rolls and to the saving throw DCs of your Warlock spells. In addition, you can regain one spell slot as a Magic action while holding the rod. You can't use this property again until you finish a Long Rest. Requires attunement by a warlock Rod Very Rare