I get the idea but the execution is a bit rought for me. Maybe if the objective was something like: "You need to reverse a spell that you cast on your master but you cannot remember the ingredient used which you need for reversing the spell. Luckyly, there are more potions but which ones is the one that triggerd the effect in the first place? Find it and rewind it to extract the ingredients then use them to form a new potion to undo everything" Just spitballing