Let me see if I can give this a try:
1 of 6
Outer Rim Recruitment Drive
Rebel Alliance Affiliation
5 Damage Capacity
Reaction: When this objective enters play, search the top five cards of your command deck for a [Rebel] unit and put it into your hand.
2 of 6
[Rebel Alliance Affiliation]
2 Force Icons
Character. Force Sensitive.
2 Damage Capacity
While Lak Sivrak is in play, this unit gains T [B].
3 of 6
2 Force Icons
3 Damage Capacity
U B [T]
While Dice Ibegeon is in play, this unit gains Protect [Character].
4 of 6
2 Edge Icons
Interrupt: When a friendly unit would be destroyed during an engagement, you may put a unit into play from your hand. If the unit that would be destroyed would have been destroyed by damage, the new unit receives that damage.
5 of 6
6 of 6
Twist of Fate
I hope this isn't too overpowered. I tried to get in several aspects of Dice's and Lak's story. I am wondering if maybe an X-Wing and a Heroic Sacrifice could be there instead of the cards 4 and 5 that I listed.
For the characters, I wanted something that would express their romantic relationship. Lak was pretty easy: I took the Shistavanen Wolfman and beefed it up a little bit (I like that card's icons and stats; it suits the species really well). Since he was an Imperial Scout, I added the edge tactics in, too. To keep him from being OP, I would be willing to give him one less capacity and/or Force Icon. Dice was a neat character in the story, and I wanted to give her more 'cerebral' icons.
I wanted to get in more of the story with the event I made up. It is a powerful effect, but that's why I made it cost two for an interrupt.
Covering Fire seems like a preexisting card that works well in the set and the story, a little bit. Like I said, this one and the event could be replaced by an X-Wing and a Heroic Sacrifice.
Twist is Twist. Um, if their being revived as Force ghosts counts as a twist. Eh.
So yeah, that's it. It was fun to think up. I've never done this before. It was hard, and again I hope it's not too strong. I put my emphasis on telling the story and the flavor of the set/characters. That's what I like best about the game and how it makes each set feel cohesive and organic, while fitting in an aspect of the universe.