DC frequently has large world-spanning crossovers, where heroes from across the company's titles come together to deal with a major threat. The most recent DC crossover was the horrifying Knight Terrors, but one hero would have been a natural fit for the event was strangely left out. With an event revolving around dreams and nightmares, it seems an obvious character to include would've been Nia Nal, known as the Dreamer.
