Than'Sanel
The half-elf Planeswalker definitely understood where Sarse was coming from. A sense that none of this plane, Nexus, would likely understand? Than'Sanel's sensing of the magic spectrum as he understood it likely wouldn't make sense to others. He supposed that Sarse's Symphony, on the other hand, would be a bit more believable when compared to a color-coded system of understanding reality and magic.
For something to disturb the Symphony Sarse spoke of, setting aside the Boros-colored man's comment of a non-mortal lifetime, was of great concern. Than' had to wonder how Sarse would respond to the Nephilim of Ravnica, but didn't bring that topic up. The less spoken of those things the better.
Arriving at the scene, the half-elf hadn't expected to find knights and soldiers of the sort he knew blocking off the epicenter of the disturbance. He tried to not outwardly cringe in distaste at Gintoki's response - 'Why had the silver-haired man follow them and how, anyway?' - to the apparent leader after Sarse had raised a question.
Addressing the disheveled man, he kindly but abruptly admonished. "Let's not antagonize the leader of these knights and soldiers, alright?"
He turned to the knight. "My friend here sensed something very disturbing had happened here and wanted to investigate. I would trust his senses on the matter in this instance, sir."