Nasser was an odd leader to play. The repeated Terracotta Army effect is incredibly powerful (and seems to affect even spies, which I'm not sure was the intent? I don't recall if it affected rock bands) although weirdly annoying because units with leftover promotions (i.e. that are overpromoted) can't be automated to explore, and most of your scouts are likely to end up that way. (Mind you, this wouldn't be a problem if overpromotions could still be used to heal units, but they can't.)
On the other end, the canal-related abilities were usually completely useless: by the time you get to canals, you rarely have much interest in the pressure increase (which is, furthermore, marginal at best) and between their lateness, limited placement options, and how long they take to build, you almost never gain any tiles from them, much less interesting ones..
Suggestion: Have Nasser's ability trigger only for the first government of each level. 4-5 Terracotta army effects over the course of the game, including one very early on, is still very powerful. You can trade in some better late-game effects for the canal, maybe +15% prod to something (units, most likely), immunity to population pressure, or immunity to being put under siege, or even just an adjacency bonus of some sort.
