Hacker Mage Throne Invasion

If a hacker becomes a mage and has the ability to "instantly refine" magic items, what impact will it have? Stage 1: Damn it, I have traveled through time, there is no system, there is only a hacker chip, there are no mobile phones, no computers, and no Tesla in this other world, what use do I have for this hacker chip! Stage 2: Damn it, so many people want to mess with me, and they are armed to the teeth, it's over, it's over… Stage 3: Huh? How does the chip display [hackable]? Can I hack magic items? Stage 4: Oh, Darling, your magic weapons are so awesome, they are all mine now... [Invasion successful] Okay, how cooked are your ashes!