Complex sentence: The WWE Intercontinental Championship is a professional wrestling championship created and promoted by the American professional wrestling promotion WWE on the SmackDown brand, whose current champion is The Miz, who is in his sixth reign.
Split into simpler sentences: The WWE Intercontinental Championship is a professional wrestling championship created and promoted by the American professional wrestling promotion WWE on the SmackDown brand. The current champion is The Miz, who is in his sixth reign.