The Tengai Shinsei is a massive celestial body summoned from the heavens, appearing as a colossal meteor enveloped in fiery aura. Its surface is rough and textured, with deep crevices and cracks glowing with intense heat, simulating molten rock. The meteor's core emits a bright, luminous glow, contrasting with the dark, charred exterior. The overall shape is asymmetrical and organic, with a dynamic, imposing presence that dominates the battlefield.