The Avengers vs. the JLA! In a neighboring universe, the Cornerstone of Reality has been destroyed, and the resulting shockwaves of realitywarping energy are seeping into the Marvel and DC universes.This energy will soon lead to the destruction of the two realities.The only way to stop the destruction is within the remaining shards of the Cornerstone of Reality.Two teams of Legends might have to destroy a universe to save their own.GM James Baize.