For the past 80 years, Marvel comics has told a lot of stories involving Tony Stark and multiple versions of the Iron Man suit. But regardless of the stories and accompanying changes, it always goes back full circle to the iconic red and gold armor design.
The EXA Phase is considered as the complete and final configuration of the Extreme Gundam Type-Leos utilizing the close combat capabilities of the Xenon Phase, the long ranged capabilities of the Eclipse Phase and the assault capabilities of the Agios Phase.
When Tony Stark saw Pepper Ports elegantly arrive at the battlefield using the Rescue armor, he thought to himself -- "Why the heck did it take me this long to give her a suit of armor!?"
The Agios Phase is the assault configuration of the Extreme Gundam Type-Leos developed based on the Strike Freedom Gundam and sharing the same wing binder layout equipped with multiple funnels.
Launching for the final battle, Kira Yamato and his Strike Freedom Gundam speeds through the mobile space fortress Messiah to stop Gilbert Durandal's machinations once and for all.