What is most obscure power/item that you have read/ can think that can be used as weapon? For example spell to make perfect tea into opponents lungs.
Turning trash into tree? Turn people into glasses lover? Hmm, i remember there's few weird power in law of ueki.
Superman flying at the speed of light causing friction and bursting the Earth's atmosphere into a sea of flames.
ahahaha memories~ I remember one change forehead into a diamond if he puts his hands into his pockets
The ability to turn anything into jello. Ai-chan doesn't need to explain. The possibilities are endless.
Parenting: you can litterally create monsters or angels if you put you mind to it. Like say, teach your childen how to manipulate those around them and impart an amoral philosophy and give them anything they want as a reward. Once thoroughly trained unleash them on the world with an order to create more just like them.
Wow, that's harsh..... Hmm...suddenly have the flowers bloom in the winter? I've seen that somewhere...
The power of shit tons of money. Because with money, you can do anything, even drown people in it or crush people head with it.
Power to hear thoughts, but hearing those thoughts without filter which in result makes you go insane. Also FMA has also a solid take on it, the power to create humunculi
COOKING. When you create a thing so delicious that it could literaly kill someone (if you can mask the poison taste) MEDICINE/PHYSICIAN Believe me when I say, as a doctor I could think 1200 ways to kill you without attracting police attention.