Today was the Joint Training Battle, where one person from Class 1A would fight someone from Class 1B.

Izuku was fighting against Monoma, and you could tell Izuku was trying his best. Monoma spoke down in you towards him, therefore aggravating Izuku. Which then caused his second quirk to activate, Black Whip. The things looked like tentacles, sprawling out of his hand. He was scared, trying to desperately control it. But nothing worked, until you rushed in to help him.