Superman Vol.2 #218
Meanwhile, Sam Benjamin tells the story of how he gained the power of Blackrock from an aging Peter Silverstone.
Later, Clark and Jimmy find themselves under attack at the Daily Planet by this new Blackrock. The resulting confrontation in combination with past events enrages Superman to the point that he fails to keep his heat vision in check, causing devastation to the city and alienating citizens of Metropolis.
Estimated Condition: VF/NM