Imagine an unrealistic scenario where Groot's battles and sacrifice take a surreal and fantastical turn. Depict Groot engaged in battles of cosmic proportions, wielding powers beyond imagination. His heart-touching sacrifice is elevated to mythic levels, with surreal elements like floating islands or surreal landscapes. Embrace a surrealistic art style that amplifies the unreality of the scene. Use exaggerated proportions, vibrant colors, and imaginative visuals. The result is a departure from the grounded themes of camaraderie, sacrifice, and growth, embracing the fantastical and surreal.