It could potentially throw them into a loop. [ everyone could have fell into Llama hell. ] Something like gouging, yes. Or maybe...

[ they raise their free hand to lightly glide over the rocky wall before it sparks brightly with electricity. it fades away after a moment, and when it does it seems to have left behind a little scorch mark. ] Like this?

This should be simple enough so I don't go exhausting myself too quickly.