As mentioned before, casting multiple Charms at the same time was an extremely difficult thing to do.
Aside from the handful of masters standing at the top of the pyramid, almost no wizard could easily master such a technique, let alone apply it in the middle of a fast-paced battle.
To be precise, reaching the level displayed before them required an immense test of one's magical control and magic reserves. It was not something that could be done as easily as one might imagine.
In fact, any wizard who, like Draco, could cast such a powerful Fiendfyre Curse while simultaneously using Apparition was already worthy of being called a master.
And Voldemort's three consecutive Killing Curses just now were an even rarer feat among wizards.
...
Faced with such swift attacks, even Lockhart only managed to dodge them by the narrowest of margins.
"As expected of the Dark Lord. That really did almost hit me~"
He clearly knew just how much his earlier actions had provoked Voldemort, and he had nearly paid the price for it.
Even so, Lockhart showed no intention of stopping. On the contrary, he seemed to be getting even worse, as if he were thoroughly enjoying this battle at the edge of death.
And Voldemort, who had already fallen into a state of madness, did not disappoint him.
Every Killing Curse cast with the Elder Wand made Lockhart burst into loud laughter. Anyone who did not know better might have thought he was the soulless lunatic.
"Yahahaha! This is the battle I've been waiting for! Again! Come on, again!"
It had to be said that Lockhart was truly satisfied by this long-awaited fight.
But faced with Lockhart's invitation to battle, Voldemort gave no response at all.
He only continued, wordlessly, casting his favored Killing Curse in Lockhart's direction.
By comparison, Voldemort was clearly in a foul mood.
However, that situation did not last long.
Very soon, Lockhart went from occasionally being able to throw out a few taunts to barely managing to gasp for breath while dodging attacks.
His situation suddenly became perilous.
Clearly, Lockhart's defeat was only a matter of time.
...
Although Lockhart looked as if he needed someone to help him, Draco did not act immediately.
Instead, his gaze fell on the severed half of the snake's body.
"So what's left... is defeating Voldemort. We've finally reached the last step."
Based on the information they currently had, Voldemort's Horcruxes should all have been destroyed.
Even if a few had truly slipped through the cracks, that was not too great a problem.
Draco turned the wand in his hand and narrowed his eyes at Voldemort, who had already lost his calm.
"Everything is still within the plan!"
Nagini's death.
Lockhart's reckless provocation.
And the entire chain of events that had happened before this, all of it had been groundwork for what came next.
Watching Voldemort step on Lockhart and point the wand in his hand at the head that was still laughing madly, Draco murmured softly, "It's time to end this..."
What was ending was not merely tonight's battle.
What was about to end...was all of this!