Superman Vol. 1 (1939-1986; 2006-2011) / Adventures of Superman Vol. 1 (1986-2006) #576

Plot

Transformed into his electric-blue energy form Superman battles Brainiac 13, while Luthor and Brainiac 2.5 head to Metropolis' power core, where Brainiac 2.5 has been reconstructing Superman's material form. Just as Brainiac 13 defeats Superman, Brainiac 2.5 returns the Man of Steel to his body at the feet of a determined Lex Luthor.