Effective period / Period of releases: 1990

Members: Aaron Byrnes, Bruce Tordrup, George Favazza, Rich Favazza

Mercy Rule, from Michigan, began playing in high school initially under the name AZ-IZ; however, the band did not take shape until the mid-eighties when its line up was finalized and name permanently changed to Mercy Rule. In 1988 Mercy Rule placed the track "Cities Are Burning" on the Underground Metal compilation and the following year released its full length R.E.X. Music debut "Overruled".