The surrounding environment became hostile, with space itself distorting under the influence of four powerful high-level Supremes initiating a method capable of destroying a large planet. Luckily, they were on a high level world, or at that instant, cracks capable of reaching the planet's core would be starting to open up.
Even so, anyone who was within 300 kilometers of their location at the moment would feel an unparalleled spiritual pressure, capable of making high-level Supremes feel uncomfortable and weaker ones die just from being within range.
But even those further away than that would suffer, with earth tremors and items like formations stopping working as they should.