Complex sentence: The double A-side single features the song "Nexus 4" which was used in a commercial for the Subaru Legacy and the song "Shine" which was used as the opening song for NHK anime series "Guardian of the Spirit".
Split into simpler sentences: The double A-side single features the song "Nexus 4" which was used in a commercial for the Subaru Legacy. And the song "Shine" which was used as the opening song for NHK anime series "Guardian of the Spirit".