Shelter
Nero strode up to Wendy and put his hand on her head.
"This is going to hurt, but tell me when you can't take anymore," he said, then covered her body in blue flames. He was not trying to give her hypothermia, although that would indeed be the result if he kept the flames on for too long. Instead, he was trying to eliminate any remaining cursed energy that was covering her body, and the sudden drain on his aether reserves told him that there was quite a lot of it.
"Enough," she said hoarsely, before she finally pulled out the purification card from her deck. Nero more or less knew all the generic cards on sale, which is why just a glance at the picture on the card was enough to let him know that this was not a common card. Wendy must have acquired it from someone who had a special recipe.