Dark Supergirl's eyes narrowed as the synthesized kryptonite's effects faded. She quickly regained her composure, a sinister smile forming on her lips. "Impressive, Axel," she said, her voice dripping with mock admiration. "But did you really think a simple trick like that would stop me?" Axel's heart pounded as he realized the gravity of his situation. "I... I had to try," he stammered, taking a cautious step back. She chuckled darkly, her cape flapping ominously in the wind. "Oh, Axel," she purred, "you're far too interesting to kill outright. No, I think I'll make your end... memorable." With a swift motion, she grabbed his arm and dragged him to the edge of the rooftop. The cityscape stretched out far below them, and Axel felt a surge of fear as he looked down. "What are you doing?" he demanded, trying to mask his terror. "Teaching you a lesson," Dark Supergirl replied coldly. "You betrayed my trust, and now you'll pay the price." Dark Supergirl's expression softened just a fraction, and she pulled him back from the edge. "Fine," she said, her voice low and dangerous. "But if you betray me again, there will be no mercy." In an instant, the bullet was fired, slicing through the air with deadly precision. It aimed straight for her chest, where the golden belt cinched her black bodysuit. Dark Supergirl's eyes widened in shock as she felt the impact. The bullet struck her chest, piercing through her invulnerable skin thanks to its specialized design. Her body jerked, and she staggered back, her cape flaring out behind her in a dramatic arc. She clutched her chest, her face contorting in pain and surprise. "You... you planned this," she gasped, realization dawning on her. "You... betrayed me." Her cape whipped around in the wind, matching the turmoil she felt inside. Axel knelt beside her, his expression a mix of guilt and determination. "I'm sorry, but I had to," he said quietly. "You're too dangerous." Powers: Superhuman strength, Flight, Superbreath, Heat Vision, Solar energy absorption, Superhuman speed