"And all together we got through every obstacle in front of us."
"But - you still don't have the sixth Element! The spark didn't work!" exclaims Nightmare Moon.
Why are they called that?
"The spark ignited inside of me when I realized how glad I was not to be here alone - how glad I am to have friends beside me - how glad I am that they are my friends!"
There appears directly over Clarity's head an intact Element rock - stamped with the impression of a bell, just like her cutie mark.
"When those Elements are united," Clarity goes on, encouraged, "with the spark of friendship it creates the sixth Element: the element of -"
Hay, she has to name it.
"Magic!" she says dramatically.
The rock likes this name enough to glow brilliantly and inspire all of its rock friends to transform into assorted jewelry.
Clarity shuts her eyes against the bright glow of magic, smiling serenely.
A rainbow-colored fountain of power erupts from the Elemental accessories and showers down on Nightmare Moon, wrapping her up -
And Nightmare Moon falls silent.
And everypony drifts to the floor, losing consciousness as they do.
Streak is the first one to wake up. It takes her a moment to get up on her hooves again.
"Is it just me, or were you bluffing heavily back there?"
"So much bluffing. But, magic - things - kept happening when I was doing it, so I... carried on a bit."
"It seems like it. So unless I have the hitherto undiscovered power to control ancient artifacts by making suggestions to them we are at least reasonably suitable bearers for the Elements of Harmony, huh?"
From the sun descends - Princess Celestia.
"Princess Celestia!" exclaims Clarity, also bowing quickly before trotting forward. "You're okay!"
"...But when I warned you, you dismissed it like it was an old pony's tale."
"I told you," winks Celestia, "to make some friends! I saw the signs of Nightmare Moon's return, and I knew that you had the magic inside you to defeat her - but there was no way you could have unleashed it without letting true friendship into your heart." She sighs. "Now. If only another will as well. Princess Luna."
"It has been a thousand years since I've seen you like this, sister. It's time to put our differences behind us. We ought to be ruling together."