Only one time use.
Think of like world leaders, celebrities, ya know 😉. Are you gonna make them do some embarassing things, or illegal acts.
My answer:
spoiler
Take control of an NSA agent with access to the most powerful hacking tools, hack everyone’s phone, install a program that randomly have a popup at random intervals, the popup message says “I’m watching you”. This also tries to spread itself to any other phone it can connect to. Pure chaos 😈
Pretty sure I can do this in a minute, depending on how good the NSA tools are.
Wouldn’t you just get distracted and put it off for later like you already do when you already have control of yourself albeit through the very same ADHD-addled brain you were hoping would for some reason spend the one, in some way supernatural minute, highly effectively?
Well I hope not. Worth trying it out I think