We already have cards that are both boost/bust, or boost and boost for your opponent. Slaved Turrets, Hondo, Bail, Pryce, Devastator, and so on. They seem pretty well balanced for the most part.

Perhaps Daala's skills improve in books I haven't read, but in the Jedi Academy series where she is introduced she is shown to be mostly reckless and incompetent. Aside from allowing the most potent superweapon ever to be stolen from under her nose by 4 or 5 people, she then decides to attempt to recklessly conquer the New Republic with what, a mere three ISD's? Not only that but she is portrayed dogmatically copying the by that time outdated tactics developed by her long dead mentor Tarkin. Definitely a good candidate for a detrimental admiral.

“As Clumsy as You are Stupid” -15 points: If your hand nudges a model other than the one you are moving, or you misadd a dice roll, your flagship takes one damage card facedown.

Defecting crew

medium and large ship only.

at the start of any ship phase your opponent may choose to discard this card. If he does this ship may not activate that round.

-15 pts.

what slot should it use?

Overall, I'm not crazy about the idea of negative point cost upgrades for Armada. I feel they are basically a "patch" to help correct power creep issues, or simply breath life into something that was over-costed in the first place. In Armada, I think the point value balance is actually quite good overall.

That being said, I don't think that something like this would be too out of line. Obviously only intended for the Pelta and Cymoon ISD, this would offset the Fleet Command Premium worked into the ship's base cost for players that would like to include these ships in their fleet but aren't interested in fleet commands.

One little shenanigan that could be pulled with this would be with Chimera, discarding and replacing another fleet command with this card to reduce it's point cost if it senses eminent destruction (deny opponent about 10-11 points with the swing), but I don't really see this "tactic" becoming "a thing".

Could be a really cool idea for a potential second campaign set.