I'm running Hoard of the Dragon Queen and the party has opted to travel as merchants instead of joining the party as guards. Since I was stressing that they were noticing that
the one wagon they knew belonged to the cultists wasn't accepting riders,
… I had Green Imsa try to obtain passage with them. I was not expecting them to take her on and I definitely wasn't expecting the wizard to hit her with Dispel Magic.
Since I was short on planning time prior to the session I hadn't fleshed out Green Imsa a lot. I figured I could just have her evade questions about what happened to her as is supplied in the adventure and then figure out what happened later.
Are there any magical effects ( if its a spell, it must be 4th level or higher) that can turn characters green?