Monsatan's Herbicidal Rod
Monsatan -- producer of everyone's favorite weed-and-neighbor remover, Ground-Up -- has recently expanded their offerings with their Herbicidal Rod! The unique blend of fun to pronounce chemicals like "orange" and "dichlorodiphenyltrichloroethane" has proven extremely effective at removing both pesky plants and peskier Goblins!
Only a warlock can attune to this rod. While attuned, you gain a +1 bonus to all attack rolls, damage rolls, and the saving throw DC to resist your spells. In addition, you can spend an action to restore a warlock spell slot of any level once per day.