The best of the Innate cards, simply because Thwart is generally considered the best of the three stats.

With this, Heroic Intuition and Heroic Conditioning, you can get +3 Thwart. If you're going that far, you should add in Specialized Training for Surveillance Specialist and get +4.

So now you have a massive 6-7 Thwart. What next?

Obviously, your typical deck will want lots of readies to get the most value out of the high THW stat. Overwatch is practically the equivalent of a ready, letting you double your thwart. And the new Grapnel Launcher can let you get an extra thwart that ignores Crisis icons.

Thwarting this much in solo is probably overkill most of the time, but this can let you easily keep threat down in multiplayer where it's more of an issue.

The most powerful use for this high THW, however, is Gunboat Diplomacy. Use an ally and build up your own thwart, and then deal damage equal to your THW + that of the ally's, in addition to thwarting threat.