"Shit!" Floyd didn't have defensive powers.
He tried to reduce the energy that was influencing the heat in the surroundings, but his mana pool was not enough. It got replenished, true, but it was like trying to fight a river with a water cannon. It helped, but not to the point he could stop it.
Gwen went between Floyd and the beast, her armor boosted to the maximum resistance she could make, and she kept pumping as much mana as she could into it to keep it in its best shape.
The heat started burning her, and she caught fire. She used her regenerative powers to heal, which worked, but even with the armor on and Floyd's powers working, she was still getting serious burns, and the heat was making her weaker, sapping away at her.
Martha created another plant barrier in front of them, this time a dense wall of thorny vines and thick branches.