Precure All Stars: Harmonic Rainbow!

Harmony

Tirek laughed in victory. The precures ran to the newbies.
"Why did you save all of us?" Cure Black said.
"It's better when there is more saved for a small effort." Twilight said.
The other cures looked at each other and held hands. The formed a circle around the harmony precure.
"We deliver our power to the Harmony Precure!" They said in unison. They all glowed. Twilight and her friends began to feel stronger. They saw a sparkling glow form above them, it became a crystal shaped object. As the the sparks cleared it landed in twilight's hands. It was the rainbow chest!
They smiled and nodded.
"Harmony precure, Rainbow mode!" The girls hair had ombré rainbow streaks. They had multicolored sparkles added to their outfits. They flew up into the air to face Tirek.
"Purple, pink, white, yellow orange, blue! Six precures, with a friendship so true!"
They organized into a heart formaition.
"Precure, Rainbow Friendship Heart!"
A gigantic bright blast of rainbow color struck Tirek. He began to revert to his weakened form and was sent back to the Tartarus prison.
Magic burst in a rainbow spark, as the cures got their full power back. The Harmony Precure floated down in victory as everyone cheered.