"You should work more on your comedy," John said, "Because it's horrendous. Cold front? Really? I expected better out of you after all these years." The flame from the lighter came pouring out and John's mind focused it into the shape of a Chinese dragon. It snaked around him almost protectively and John grinned broadly, "You're going down, namper."
The heat of the flames clashed against the cold that Bobby emitted. Fog formed as a thick mist in between the two of them. The shock of hot and cold forcing the condensation process to speed. parts were steam, other parts a thick cloud. Regardless, John knew they were going to have to make a move and there was only so much he could do with his fire in comparison to Bobby and his ice. But John, over the years, learned a few tricks of his own that afforded him something of an advantage as well.
The simulation started and the walls coated with some protective shield in order to contain the two elements that battled. John wasn't going to give Bobby third degree burns or anything, but if he could melt that popsicle just a smidge...the dragon swooshed around the cloud and toward where Bobby was standing before.