Complex sentence: Days of Then and Now, Quentin Quire was one of the surviving heroes during the Annihilation Wave, which was led to Earth by a banished Hulk who had killed Annihilus.
Split into simpler sentences: Days of Then and Now, Quentin Quire is one of the surviving heroes during the Annihilation Wave. It is led to Earth by a banished Hulk, who has killed Annihilus.