"It's what lemons, vinegar, and stronger liquids that can dissolve metal or gold if you have those, all have in common, and presumably it's what the Acid Splash cantrip - well, fakes, or so I'd guess.  Describing it in terms of underlying Law would be a detour, but also it's bad news if we have to take that detour because that makes it much harder to teach laundry wizards to do it."

"It's what lemons, vinegar, and stronger liquids that can dissolve metal if you know those, all have in common, and presumably it's what the Acid Splash cantrip - well, fakes, or so I'd guess.  Describing it in terms of underlying Law would be a detour, but also it's bad news if we have to take that detour because that makes it much harder to teach laundry wizards to do it."