Complex sentence: In October 2006 news leaked that Ward would be reuniting with Tony Iommi, Geezer Butler and Ronnie James Dio for a tour though under the moniker Heaven and Hell, however, Ward later decided not to participate in the tour.
Split into simpler sentences: In October 2006 news leaked that Ward would be reuniting with Tony Iommi, Geezer Butler and Ronnie James Dio for a tour though under the moniker Heaven and Hell. However, Ward later decided not to participate in the tour.