All month long we will feature brand-new Cool Avengers and X-Men Comic Book Moments in celebration of their fiftieth anniversaries this month. Here is an archive of all the past cool comic moments that I've featured so far over the years.

Today we look at the debut of a new Avengers, the Hellcat!!

Things are going poorly for the Avengers in Avengers #144 (written by Steve Englehart and drawn by George Perez and Mike Esposito). They are trapped in the Brand Corporation's headquarters lowest levels. They just survived a missile attack (a scene so cool that I might feature it in the future) and the team is split up into smaller groups, ripe for attack by the brainwashed Squadron Supreme, who the Brand Corporation had under their control.

Captain America and Iron Man split up with Patsy Walker, who was the one who alerted them to the problems at Brand (her jerk husband worked for Brand).

Cap and Iron Man come across the costume of the former heroine known as the Cat (who had since become Tigra).

We got a quick recap of the Cat's history and then Cap makes an interesting offer...

This leads to the dramatic debut of the Hellcat...

Wow, early Perez and it was already awesome!!