(This is in the second half of PRiS, after Astronema finds out she's Karone but has her memory wiped, just because I think she looks better with the short red hair.)
Astronema teleported into a forest just outside of Angel Grove as the Rangers were getting the best of her monster.
"Astronema!" TJ said, surprised.
She raised her staff up and blasted the Rangers with energy, knocking them to the ground.
"You may be able to beat my monster now, but not when my new, powered-up Satelasers are done with it. Fire them!"
From high above in Astronema's base, Ecliptor nodded and pressed the button to fire the Satelasers. Suddenly, it began emitting sparks.
"What's wrong this piece of junk?!?" Ecliptor yelled, banging on it with his metallic fist.
He watched as the Satelasers missed their target, having malfunctioned due to the increase of energy, and instead struck Astronema! She was surprised at first, but then filled with the overwhelming power as she began to grow at an incredible rate! The shocked Rangers teleported out while her monster was crushed underneath her monstorous bare foot (her feet inexpliciably grew right their her boots). She kept her eyes closed as the power continued to fill her body and she grew bigger and bigger. Soon, she was so tall that all of Angel Grove could see her expanding form, and they began to quiver in fear of the rapdily growing evildoer. Still, they stood in the streets, transfixed by the sight of the rapidly growing goddess.
By the time it was over, Astronema was by far the biggest thing anyone had ever seen. The townspeople had to strain their necks just to take in the full reaches of her legs- in fact, the entire city was now much smaller than her right big toe. The monolithic toe rose over the city, threatening to crush them at anytime.
Astronema opened her eyes, and was delighted to see the world that laid before her. Her trademark evil grin appeared on her face as she looked down at Angel Grove, looking so tiny compared to her big toe. She looked up at the sky, knowing the Power Rangers were watching her, and spoke.
"See how easy it is now for me to destroy your precious city." her boooming voice spoke.
Hearing that, the people below in Angel Grove began to run, but it wasn't going to do them any good. When she rose that incredible toe upwards, the people below began praying, saying their goobyes, and begging for mercy. She hung it up above their heads for an instant, long enough to smile slowly, before bringing down her toe with incredible force. In that moment, an entire city was wiped out.
Astronema smirked as she turned her head up towards the Astro Megaship. By just moving her big toe forward, she had wiped out an entire city. The power was incredible. And there was nothing the Rangers could do to stop her.
The Rangers were indeed watching from the Astro Megaship, horrified, and knowing they could do nothing as Astronema destroyed their city with one move of her toe. Ashley began to weep as Cassie tried to comfort her, while Andros felt tears welling up in his eyes as well.
"I can't believe my sister is doing this." Andros finally spoke.
"That's not your sister, man, that's Astronema." T.J. replied. "Dark Specter's Astronema."
"Either way, we've got to find a way to stop her." Carlos spoke.
Andros nodded meekly, trying to think of what their options were.