What did she learn, and what did she keep? Well, she learned how to adapt to different magical systems, and more importantly how to bring her own magic with her. Marvel abounds with psychics, and she picked up a low-level teleptathy here too, that she can use when communicating with her own kind. She also broadened her understanding of technology and of humankind, though this was mostly limeted to guns (way more fun than bows) and to mutants, an already ostracized bunch. The GM specialized in emotional/psychic enemies, so Nighthawk's personality became a lot less flexible during this time as she had to continually resist mental pressure from outside herself.
Nighthawk, back on Seromath, discovers in her crystal ball a threat on the world of Moogle War that could endanger her kingdom. The Moogles, a violent, sex-mad race of little white teddy bears with pink bat wings, are nearing a new Gate to Seromath - near the last outpost of elves on that world. Worse, if they should discover the Gate and go through it, the terminus on the Seromathi side is only a few miles from her kingdom's border. The humans of Moogle War have a chance to defeat the moogles, but it's a chancy thing. Unwilling to risk the chance of such a vile, and violent race discovering and using the Gate before it fully closes (in a few months time) for the next few thousand years, Nighthawk calls for volunteers in the Guard for a suicide mission; prevent the moogles from reaching and discovering the Gate and its power. 300 of her people agree. The King, although against the mission, ultimately allows her to send the small force forth.
Nighthawk's powers, as such, didn't change on this shift; the worlds of Moogle War and Seromath aren't all that different in fundamental respects. What has stood her in good stead this time are her memories; remembering the tales of bards in her homeworld, and the workings of technology on Marvel-Earth. The reason this turned out to be useful was that - once on the world and committed to a course of battle - she discovered the presence of a Hero, a person whose life is touched by the gods. Knowing this sooner, she would not have entered the war, but she's rather stuck for it now. You want more information, go to egroups and check out the FFML archives :)
What has she learned, what will she keep? Well, on this trip Nighthawk has gotten a valuable lesson in caution; in very little time she's gotten way over her head, and her people will pay the price. She's also completely lost any trust she had for the human race; after seeing what the humans of Earth, Seromath, and Moogle War do, she's decided they're all alike and not fit for more than target practice. While she still attempts to give individual examples of humanity a chance, it's more a case now of them trying to prove they're different than of earning her trust from an even standpoint. The Hero she discovered has played no small part in this judgement; she had thought of Heroes as noble examples of the species, but as it turns out her education was a bit lacking on that score. On her return to Seromath, this will likely result in even tighter security around Variel. Her combat skills have been given a major workout on Moogle world also, so she should be a force to be reconed with even on the ground and with an unfamiliar weapon.
Endnote: Nighthawk and Aelis Re were involved in Moogle War 3 and the beginning of Hillion Dynasty.