I Need Constitution Saving Throws From All Three of You

The dragon comes through from the whole distance there, trying to catch up with you. It gets down and lands on the bottom. At 40 feet out from it on the ground, it will catch you in its breath. I need constitution saving throws from all three of you, please. Oh, my God. Do I have a bonus? A plus? I can't even bless you. You cast paths out of trace, though. I did. That is 61 points of cold damage to each of you. But you're already at the bottom at that point. Right?""Yeah," he says. "I'm going to use my luck and go for it."