Being an Avenger means not being able to quit -- especially in the face of overwhelming odds. So, when Earth's Mightiest Heroes find their plans imploding and up against seemingly unbeatable foes, they dig in their heels, reaffirm their commitment to protecting the defenseless, and try to fight harder. That's exactly what happened in Avengers #5 by writer Jed MacKay and guest artist Ivan Fiorelli.
Source：https://www.cbr.com/avengers-5-jed-mackay-interview/
