Tillius
By the time Gray Flame shot that arrow, his premonition of an imminent explosion warned him not to commit to the attack and instead duck behind his large. It turned out to be wrong, but the decision was for the most part a correct one, as the laser through its damaged lens scattered off and scorched off the metallic skins of his shield, but it otherwise was completely fine and held up. His positioning right next to the pillar also created a pseudo-barrier from the lasers, something to which Gray Flame took advantage of when he couldn't with Roxas's.
When Tillius reviewed the scene, Engelbert was already finishing the golem off, and by the time the orc reached it, it was already head-deep in its own blood, or whatever that even is. The fight was over, they needed to handle the aftermath. Firstly, Carnatia, the one member who did not utilize either covers, and was promptly shot with the lasers. Roxas was already on the scene for it, but Tillius remembered the brooch Carnatia had given him earlier today, one said to be enhancing mana efficiency. If there is a time to be using that loot we got from the abandoned house, it would be now.
"Might come in handy." He tersely stated, taking out the brooch, knelt by the two ladies, and let Roxas decide if she'd like to take it. He didn't linger around them though. The second aftermath requiring his attention was the fire. It wasn't because he suddenly had sentiments for those precious old relics that he never heard or had respect for, or that Vesemir was crying about it in the background, but the fact that there were multiple bookshelves nearby, all of which could easily catch fire from that already burning shelf. Tillius had fought fires before in his times in the army, and while no one would be in danger of burning to death, inhaling smoke is the invisible killer many had perished to throughout the years, even decades and centuries. They were also underground, which wouldn't help if all these shelves catches fire
Unfortunately, with only his shield, he wouldn't have much to stop the already burning fire. He could, however, prevent it from getting worse. And that is what he did, going to the right and pull the two shelves away from the flames.
"Any of you, handle the other one." He gestured towards either Rezello or Engelbert, the two strong men of this group, to do the same for the other ones. If someone could stop the actively burning fire, Tillius presumed they would be doing that soon.