Mighty Avengers #32-33 (2010)

This is a fun pair of issues in which Loki really gets to shine.

Loki plays both sides of the Avengers battle, manipulating the Mighty Avengers to become global superstars while goading Norman Osborn into continuing to see them as a threat.  

It culminates in Loki freeing Crusher Creel from his Project PEGASUS prison and helping him locate the Cosmic Cube, which he then absorbs to become ridiculously powerful.

Pym and Osborn then end up competing to see who can lead the team that stops Absorbing Man. 

The fight scenes between the teams are fun.

Due to more Loki intervention, Osborn wins–but in the process, Hank Pym is finally able to confirm that Loki is behind it all.

After he wins, Osborn strips USAgent of his rank and title.  This is a bit odd because USAgent is a member of the Mighty Avengers, who are technically outlaws for being unregistered heroes so…Why is this a big deal?  Answer: It isn’t.  John Walker is a terrible character and always has been, and nobody should care at all what happens to him.