Complex sentence: Flair appeared on the main roster sporadically throughout 2013, appearing as The Miz's mentor, while also occasionally appearing on "NXT" in 2013 and 2014, accompanying his daughter Charlotte to the ring.
Split into simpler sentences: Flair appeared on the main roster sporadically throughout 2013, as The Miz's mentor. He also occasionally appeared on "NXT" in 2013 and 2014, accompanying his daughter Charlotte to the ring.