Generate a hyper-realistic and intense depiction of a fusion between Devil Jin from Tekken 8 and Sub-Zero from Mortal Kombat in a shadowy, icy cavern. The character should be muscular, with Devil Jin's demonic wings and glowing red eyes merged with Sub-Zero's frost-covered armor, emitting cold, blue energy. The body should have a mix of dark demonic and icy details, with one arm emanating red flames and the other frost. The background should be filled with jagged ice formations and dark shadows, creating an ominous and chilling atmosphere.