The Spike Volleyball - S-Tier Wing Spike Oasis - His Special Ability Explained

Thanks to user Zeph for his explanation.... he or she was spot on. Oasis gets stronger as the opponent scores more points. When he hits "noon" at 15 he is absolutely insane. I hit a 4.09m spike with him at 9. Very bizarre things happen at 5:22 till the end...like, they dug that thumbnail attack...