2024 rules reference for Wand of Paralysis.
Wand
This wand has 7 charges. While holding it, you can take a Magic action to expend 1 charge to cause a thin blue ray to streak from the tip toward a creature you can see within 60 feet of yourself. The target must succeed on a DC 15 Constitution savingthrow or have the Paralyzed condition for 1 minute. At the end of each of the target's turns, it repeats the save, ending the effect on itself on a success.
Regaining Charges. The wand regains 1d6 + 1 expended charges daily at dawn. If you expendthe wand's last charge, roll 1d20. On a 1, the wand crumbles into ashes and is destroyed.
Spellcaster