acelister | 9 points
EDIT: DC's, not CD's... /edit
Batman discovers a dark multiverse that exists beneath the core DC multiverse, connected through mysterious metals that Batman has encountered over the years. His investigations eventually result in him releasing seven evil versions of himself from the dark multiverse that invade Earth.
Dark Nights: Metal ran from June 2017 to April 2018, and was plotted by Scott Snyder with art by Greg Capullo. As well as a six issue core miniseries, there were 21 tie-ins, including issues of The Flash, Justice League, Suicide Squad, Green Arrow, Nightwing, Teen Titans and Hal Jordan & the Green Lantern Corps.
In a change to my usual way of doing these, the folder contains all of the single issues. It's just under 1.1GB to download them all.