The first incarnation of Blizzard happened when Ozzy left Sabbath for a short period before the Never Say Die album. The guitarist was a guy called Barry Dunnery who is Francis Dunnery's brother who was the guitarist in UK prog rock band It Bites. Francis has a reputation as an awesome player and is well respected in the industry but his brother Barry could run rings around him. For some reason Barry never made it big time even though Tony Iommi managed his band.
Ok hers's the info.
Blizzard of Oz mk 1
Ozzy-Vocals
Barry Dunnery-Guitar
Dennis Mcarten-Bass
Frank Hall- Drums
With the disintegration of Sabs in the late 70's Ozzy set about creating a fresh band with Necromandus members featuring Barry Dunnery on Guitar. The line up recorded demo's in 1977for a proposed album but faltered and split up. Would love to get my hands on those demo's.
Blizzard of Oz mk 2
Ozzy-Vocals
John Fraser-Binnie-Guitar
Terry Horbury-Bass
Andy Bierne-Drums
Later in 77 Oz recruited members from the band Dirty Tricks. This line up floundered too as Oz returned to Sabbath ousting his temporary replacement Dave Walker who sang the last track on Never Say Die. Fraser-binnie was later in Rogue Male and Andy Bierne was in Praying Mantis for a while.
I see several flaws in your story. Black Sabbath didn't disintergrate, Ozzy left Sabbath when his father died. Those weren't Blizzard of Ozz, it was a side project. Dave Walker doesn't appear on NSD. Swinging The Chain is sung by Bill Ward.
I wouldn't even call them bands. They jammed a bit and flirted with the idea.
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Tony Iommi = God, his arch angels are Ozzy Osbourne, Dave Walker, Ronnie James Dio, Ian Gillan, Dave Donato, Glenn Hughes, Ray Gillen, Tony Martin, and Bill Ward (bassically everyone who sang on a song labeled Black Sabbath)
It's not the obvious answer either. Lets see how well informed you lot really are. I'll give you the answer soon.