Mutant X #15

The cover of Mutant X #15 says it all with its bold declaration "S.H.I.E.L.D. Attacks!" — a massive green Hulk-like figure rages at the top while a blonde energy-wielding hero, a gun-toting man in black with an eyepatch, and a fierce bald woman with glowing red eyes brace themselves against a surrounding ring of armed S.H.I.E.L.D. agents. Cary Nord and Andrew Pepoy's cover crackles with tension, framing the team as outnumbered but unbroken. Part of Marvel's 1999 alternate-universe series, this issue — "The Ripple Effect" — promises the kind of high-stakes standoff that makes Mutant X such a compelling corner of the Marvel multiverse.