Totally a Wish Cantrip

You cast the Totally a Wish Cantrip spell, and whatever you try to make it do, the DM rolls a d100, on a 99 (minus your spellcasting bonus) or higher, it does what you want it to do. On any other number it does the exact opposite. If the exact opposite doesn't make sense (ex. The opposite of re-aliving someone), roll a d6. 1-3, roll on the Wild Magic Table, 4-6, random Curse (DM decides)