Um I have Spoons made of the strongest metals on earth also they are big spoons size of a katana. I will cut astro into jello cubes. Also I have Wings so I could fly above him.
Long story short I win but yes I know my vote doesn't count...
I asked google "What Destroys slime" and it said "use vinegar or baking soda and vinegar to dissolve it, or even use it as a stain remover on fabrics" so all I do is bring vinegar or baking soda then I win :)
Ok since you made your OC overpowered I will make my OC overpowered. My spoons are made of and earth shattering substance that you can't eat and was used in the great war between monsters and humans but was never used again. My armor is made from ancient metal that redirected radioactive materials back at the opponent. I also used a machine to make my wings grow 10x bigger! I also put a machine in my spoons that will make my spoons follow you automatically and attack you!