As soon as Nightmare Moon was off of her, Shining and Cadence rushed towards Celestia's body. Shining put up a shield around them, while Cadence broke the bindings holding the alicorn's hooves together and took off her blindfold. She knelt by her and held her head up with a wing.
Celestia weakly lifted her neck, scanning the place around them as Cadence went to work on her wounds with her magic. She spotted Twilight, using her magic against Nightmare Moon, and after swallowing she let herself relax and her head droop down again. "I'm okay," she said, her voice hoarse and rough. "Nothing broken." She looked like she wanted to say something more, but didn't have the strength to.
Outside of the bubble of Shining's magical shield, Twilight stopped firing magic from her horn. She gave Luna a nod, and immediately started to gallop away. As soon as she saw that, Nightmare Moon started to charge towards her, her shield still up and blocking everything thrown at her. But Luna quickly intercepted her. There was a flash of black, spreading out from Luna's horn and rising like waves around the two alicorns. It twisted and turned for a few moments, spikes of energy trying to push their way out from within as blue lightning crackled along the surface, but eventually it settled into a pitch black sphere the size of a small building, immobile and hiding both Nightmare Moon and Luna inside.
Twilight took flight, and Rainbow Dash joined her at her side, alongside two of Sunburst's constructs. Cadence hoisted Celestia over her shoulders, and together with Shining began to move back towards the palace. The shield held without much effort against the blasts of magic coming from those few of Nightmare Moon's soldiers who had advanced close enough to see them, though most of them soon focused their attention elsewhere. One blast in particular however, just as the couple reached the lower entrance to the palace, forced Shining to dig his hooves in and grit his teeth.
While Cadence, after a brief look between them, rushed on into the building to carry Celestia to safety and medical aid, Shining turned and readied himself. He made his shield smaller once Cadence had entered the building, bringing it only around himself for the time being. But his opponent didn't shoot a second time, merely watching as the alicorns left the scene before focusing his eyes on Shining and grinning at him.
If Shining had to guess, he'd slithered his way there while everyone had still been distracted by everything going on between Twilight and Nightmare Moon, explaining how he could be there already while everyone else from the other side was still much farther from the centre of town. That, or he'd slipped in through the same portal Nightmare Moon had, which had been closed at some point during her talk with Twilight.
Sombra tilted his head to the side, grinning still. He wasn't speaking, but Shining felt it was because he didn't want to, not because he couldn't. Hard to know for sure with him though. He wore armour much like the one from his world had worn the first time Shining had seen him in full, but no cape or mantle on his back, and no crown. Only his curved red horn stood out against his flowing black mane. His eyes were piercing, unnaturally slit and coloured, but no purple smoke came from them.
He moved slightly too fast for Shining to react, and when he was in front of the unicorn's shield he didn't fire his horn. He bucked at it with his legs and hooves, still carrying the momentum of his movement. Shining's body, still within his shield, was sent flying backwards into a building.