Slaughter Lord were a cult thrash band from Australia who never actually released an album. “Thrash ’til Death” is a compilation of their demo material from 1986-1987. Formed in May 1985 under the name Onslaught.
This vid of a Melbourne show even has the Ladies of Mortal Sin thrashing on stage, As well as the future guitarist Mick Burke and drummer/comedian Steve Hughes.
Some serious Aussie metal history here from the God Fathers of the scene.