X-Men Blue (2017) #20 (Signed by Cullen Bunn)

CROSS-TIME CAPERS Part 4 The X-MEN have traveled back in time to encounter...THEMSELVES! But why are the X-Men of the past acting like such jerks? The X-Men have allied with MAGNETO in the present, but what happens when they team up with the villainous Master of Magnetism? Rated T+