I like the format. It reminds me of an article I read somewhere quite recently
. But more seriously... I haven't figured out what "Dominion Academy" will be about next time. Episode #1 was mostly about kingdom analysis and deck interactions, but the next one might be different.
On the style of your article... maybe you should choose a bit more between 'something instructive' or more like 'puzzle along with me'. If you go for the first, I think you should state the obvious more clearly in your analysis. I'm also a bit in doubt what to play here, but two things very much stand out to me: it's either a deck around Jack, or a deck around the Scrying Pools. Sure, there may be some variations, maybe add a Councilroom to the Jack deck later on, how to open in the engine, but those are all secondary questions. Explicitly stating the obvious (for an experienced player) can be very helpful / instructive to someone relatively new to the game. From your analysis I get the impression that I can choose between 6 different archetypes. Really, I can't. An engine without pools doesn't stand a chance against Jack here. Bigmoney without at least two Jacks gets destroyed by the engine.
On flexible openings... that can be nice. However, it's the exception, not the rule. Most of the games it actually *is* best to choose your plan before you buy your first card. Especially if the different plans want totally different cards, like... Jack decks vs Pool decks.
The reason to play engine here is that you may or may not make it into playing 4+ saboteurs a turn in time, thus completely tearing down your opponents deck. Maybe 4 isn't even enough and you need to aim for 6 or 8. And then just prey you can sneak out enough points before the three-piling happens. No way you can beat Jack to scoring half the points on the board, there aren't that many points available. Selecting your targets for Saboteur won't work, that rarely ever works. You just need to hit them a lot, I agree with jonts on that point.
If I play the engine, Councilroom isn't the only option for adding more then one card/turn to my deck. I really want to play with a Jack of my own at some point. Gain free Silvers, remake into more Throne Rooms. Duchy comes with a free Duchess but that's not so hot. Do not buy the Jack before you can handle the Silvers though, so only after you remade about 8 of your starting 10.
If you play engine, you really need to fire every turn. Fortunately you only need about 2 Pools to draw your deck. So put the others (3?) back on top for next turn! After drawing your deck, doing your remake magic, and drawing the rewards, play a Warehouse. Discard three pools, or at least two. Then force a reshuffle with either Jack or a Duchess.
On targeting with Saboteur... you really don't want to hit those Provinces. Well, you do want to hit them, but not for a long time. Your top priority is hitting Jack, or maybe Gold, or Councilroom if they have it. Anything to stop them from buying more Provinces.
After giving it some thought, I really want to play engine here. Just too much fun. Even though solitaire doesn't make that much sense on this board I tried the engine
anyway. It does contain the 'Jack for free cards' and 'put back the pools' tricks. It works quite ok, I play my first 2 Saboteurs on turn 12, 2 on t13, 5 on t14 and then I could play at least 6 a turn while buying either a Nobles or a Province. No Councilrooms involved to help my opponent, although I do play some Duchesses.
I agree with your opening Potion over a Remake, and would want to do that on 4/3 as well. Probably Potion/Warehouse. Remaking is important, but if I start remaking from a five card hand I can't do anything else and I really need some Pools. If I start with some Pools/Warehouses, I can Remake extra-fast after that, on turns where I both play remake and buy a Scrying Pool.