Rod, rare (requires attunement)
While holding this rod, you gain a +1 bonus to spell attack rolls and to the saving throw DCs of your warlock spells.
In addition, you can regain 1 warlock spell slot as an action while holding the rod. You can’t use this property again until you finish a long rest.
While holding it, you can use an action to expend 1 or more of its bearer’s Hit Dice to cast the the Hex spell from it. For 1 Hit Die, you cast the 1st-level version of the spell. You can increase the spell slot level by one for each additional Hit Dice you expend.