OP Ruby fights entire class one by one and then all at once, proves she's a better group fighter than Glynda

Ruby got to class late. AGAIN. Naturally, Ms. Goodwitch had a new idea for her punishment, after seeing her combat the Grimm. "Ms. Rose, for your repeated tardiness in my class, I have an assignment for you. I am willing to ignore all of your late times for the rest of the year if you attempt this." Ruby nodded hysterically, "ILLDOITPLEASEDONTFAILMEIF I GET GET FAILED ILL NEVER GET MY HUNTRESS LICENSE AND AND AND" "Ruby." Glynda interrupted. "Do you want to know what this assignment is?" Ruby nodded meekly. "Yes Ma'am." "Today, I want you to fight each and every person in the class other than me, one at a time. Tomorrow, I will give you the other task." Ruby nodded, eyes wide from shock. "All of them?" "Yes. We'll start at the bottom ranking and work our way up, or the top ranking and work our way down. Your choice." Ruby blinked, then "Bottom up." Glynda nodded her approval, 'she knows that she won't likely win if she starts at the top with Pyrrha. Good judgement. Well, it's either that or she just wants to work her way up.' "OK, In that case, would Dove Bronzewing step to the arena please?" The brunette boy makes his way down, drawing his dual daggers and preparing to infuse dust. Ruby nods to herself, flicking out her scythe and sliding into a runner's starting stance. Dove starts out with a charge, daggers prepared to intercept the scythe from the right in his belief that she will keep to a typical strategy. Ruby looks at him strangely as she spins to the left faster than he can follow, and slams her scythe into the back of his head.

"Ruby Rose is the winner."

Ruby looked at the unconscious guy and shrugs. "Why did he try to charge at someone who he knew was faster than him?"