The scene you've described is not part of any officially recognized DC Comics storyline, film, or television show as of my last update. This seems more like a speculative or fan fiction narrative rather than an event from any canonical source. DC Comics' storylines are known for their complex and often unpredictable twists, with characters like Wonder Woman and Supergirl undergoing various transformations or trials. The notion of using the purple healing ray--a device traditionally associated with Wonder Woman and the Amazons for restoration and healing--combined with a ritualistic act involving Wonder Woman's blood for a transformation, speaks to an imaginative and alternate take on the characters and their mythos. In traditional DC Comics lore, the purple healing ray is indeed an Amazonian technology that is generally used for good, to heal injuries and illnesses. Wonder Woman (Diana Prince) and Artemis (also an Amazon) would characteristically use such a device with the intent to help, not harm. If this were an actual prediction in the context of a legitimate DC Comics storyline, it would suggest a turn towards a darker interpretation of their characters, with elements of magic and transformation. Such narratives often explore the consequences of tampering with powerful forces, the boundaries of science and mysticism, as well as the potential corruption of well-known heroes. However, without being tied to any authentic DC storyline, what you've described can only be speculated upon within the framework of creative writing or a fan fiction scenario. In official comics, dramatic events like the misuse of the purple healing ray or the transformation of a character like Supergirl would likely be explored with significant consequences and story arcs to follow, delving into themes of power, responsibility, and redemption.

As I previously mentioned, the scene you've described does not correspond to any official DC Comics canon, and thus can't be accurately 'predicted' as such within that universe. However, I can create a speculative continuation or aftermath based on the scenario you've provided, imagining how such an event might be interpreted in a fictional, non-canon story. --- **Aftermath of the Purple Ray Incident** The explosion of the Chamber of the Purple Ray sent shockwaves through Themyscira, the island home of the Amazons. In the aftermath, a new and changed Supergirl stood amidst the ruins, her eyes glowing with the same deep violet that had emanated from the chamber moments before. Diana, the famed Wonder Woman, dusted off her armor, her expression a mix of awe and concern. "Artemis," she called to her fellow Amazon who was just now rising to her feet, "report." Artemis shook her head, trying to clear the ringing in her ears. "The purple ray... it is gone. And Supergirl, she... she is different. This power, it's unlike anything we've seen." Kara Zor-El, once deemed Supergirl, seemed taller, her physique more imposing. She flexed her hands, and arcs of violet energy danced between her fingers. "I feel... powerful. Beyond measure. What have you done to me?" Her voice held an edge, a clarity that hinted at an untapped wellspring of strength. "We sought to heal you, to enhance you with the might of the Amazons," Diana explained, stepping closer. "But I fear the combination of the purple ray and the blood of an Amazon princess has ushered in something new. An energy we did not anticipate." Kara looked around, her gaze falling upon the statues of the gods that watched over Themyscira. "This power... it is not just from the ray or your blood, Diana. This is divine energy. I can feel the touch of the gods within it." Artemis nodded slowly. "The gods do not grant such gifts lightly. Perhaps they have chosen you for a purpose, Kara Zor-El. A purpose even we cannot foresee." With her newfound strength, Kara could sense the trouble brewing beyond the shores of Themyscira. "I must find out what that purpose is," she declared. "But first, I must learn to control this power. To harness it for good. Will you help me?" Diana placed a reassuring hand on Kara's shoulder. "We will stand by you, sister. The path you walk may be fraught with challenges, but remember, you are never alone." As the trio contemplated the weight of what had occurred, whispers began to echo across the island. The other Amazons emerged from their shelters, their expressions ranging from astonishment to fear. They had all felt the surge of power, had all witnessed the blaze of violet light that had pierced the heavens. And from those heavens, the gods watched. A new champion had been born on Earth, one whose destiny would unfurl in ways none could predict. It was a turn of events set in motion by a wish to heal, to empower, yet the consequences would ripple across dimensions and time. There would be those who would seek to challenge Kara's newfound might, villains and deities who would covet such power for themselves. And there would be those who would look to her for hope, for a sign that even amidst the direst circumstances, strength and resolve could bring forth a new dawn. Thus began the journey of Kara Zor-El, the Supergirl reborn, a warrior remade by the will of the gods and the ambitions of the Amazons. Her story -- their story -- was just beginning. --- This speculative narrative builds on the initial events you described and explores the potential ramifications within the wider DC Universe, albeit an alternate one. In official comics, storylines like this would likely span several issues, with intricate character development and interactions with other heroes and villains in the DC pantheon.

To craft a back-story for the speculative non-canon scenario you've described, let's fabricate a sequence of events that could potentially lead to the dramatic alteration of Supergirl by a modified Amazonian healing technology: --- **Back-Story Leading to the Purple Ray Incident** **A Fateful Battle:** Supergirl (Kara Zor-El) had been engaged in a harrowing conflict against a powerful nemesis whose malicious actions threatened the entirety of Earth. During the battle, Kara suffered a grievous injury, one that her Kryptonian physiology struggled to heal. Her allies, including Superman and the Justice League, were concerned that this unprecedented attack could leave Supergirl weakened or even cause permanent damage. **The Search for a Cure:** Wonder Woman, Kara's comrade and fellow Justice League member, proposed that they use Themyscira's advanced healing technologies to aid in Kara's recovery. Notably, Themyscira possessed the legendary Purple Healing Ray, known to possess extraordinary regenerative properties that could mend injuries beyond the scope of human medicine. The Amazons' safeguarded this technology, typically reserving its power for their own. **A Desperate Decision:** Diana, having been both a friend and mentor to Kara, felt a personal responsibility for her young comrade's well-being. She convinced the Amazonian council that Supergirl's service to the world warranted an exception to their usual custom. The council agreed, acknowledging that the threat which injured Kara was of grave concern to the whole planet, not just the Amazons. **The Amazonian Ritual:** As the procedure commenced, Diana felt compelled to ensure its success--leading her to take an unprecedented action. Drawing from ancient Amazonian lore, she believed that combining her divine-given blood--a gift from her father, Zeus--with the technology of the Purple Ray might amplify its effects, providing Kara not just with healing but perhaps imbue her with additional strength to prevent future catastrophes. **Unforeseen Consequences:** Diana's actions were well-intentioned but impulsive. The combination of divine blood and the Purple Ray's technologies interacted unpredictably. The chamber indeed emitted a bright purple light, evolving into a deep violet, suggesting not just healing but a transformative process entirely unknown to the Amazons. When the energy became too volatile, an explosion occurred, resulting in the destruction of the chamber. Yet from its remains emerged a new and enhanced Kara--her abilities, appearance, and perhaps even her very essence irrevocably altered. The exact ramifications were yet to be fully understood, and the gods remained silent, their intentions a mystery. --- By constructing a narrative of events leading up to this situation, we've created a context in which the actions of Wonder Woman and Artemis might make sense within the confines of this hypothetical scenario. In official comic book series, such dramatic turns are frequently built upon a history of complex events and character interactions, making the DC Universe a rich tapestry of interconnected stories and legacies.