An extremely popular & prevalent tool, produced & distributed at a low cost to the citizens of Majikkutaun by the Quantum Order. They're used to cast more powerful magic with more ease & convenience than if done with one's bare hands; with built-in safeguards in place, to prevent them being used for destructive purposes, of course. In fact, why not prevent potentially problematic spells, altogether?
Any spell being cast through a QuantumWand™ undergoes an internal check to detect if it may potentially cause issues for the Quantum Order, such as affecting the company's reputation, if it may cause legal trouble, or if it's being used as a weapon against the Order. The wand shuts itself off if it detects such a probability.
Strangely enough, it seems the more a person uses a QuantumWand™, the weaker their ability to do magic on their own without the wand becomes. Similarly, even non-wand-users have their magic capabilities slightly diminished after being in the vicinity of a wand-casted spell. But surely that's not something to worry about, right?
...Secretly, all QuantumWand™ customers' magic is quietly being harvested by the wands- half to fuel the product's power & efficiency, but also half to fuel Persophia's portal. Some of the harvested magic can be returned to its original owner, if the wand it was harvested through is destroyed, but only when Persophia's portal is destroyed will all the magic be returned.