First off: very well written and concise post.
Agree with nearly your all of your tactical approaches, altho with one or two points I disagree.
Firstly, those hands are certainly terrible, but only on their own accord. Below there is still another level of ''no chance at all'' that you can draw, the one where you don't have a 7/8. That said, I don't know which one is precisely more likely to appear in a 2* deck, so ill just assume they can both appear at a somewhat equal rate (for arguments sake).
Your layed out method shows very nicely how to go for beating Landanel (and apply similar tactics to Rowena) with this kind of gimped deck.
Secondly tho, I do feel all of the wins are down to ''luck''. Now as I said I quite agree with the way you moved all your cards.
However to take your last match as an example; at the end I would have assumed result: draw best case, worst case loss.
Draw: the more likely conclusion.
- Titan or his unknown was placed in the top left first. Had you placed a card in middle left or bottom left after, you would have lost 2 cards, so you would place it in top middle. He plays Odin or the remaining card on the left side, caps 1; you finish --> draw.
-He places a card in top middle. Considering the stats he has left, likely wont capture. If he uses bahamut will result in his win, if he not, your win unless he uses bahamut on the left side afterwards, resulting in a draw.
-If he uses bahamut in the middle left, your win due to having free placement and no cards that can be taken. If he uses any other card there, your win if you can exploit it without sylph being taken; otherwise draw.
Now the big one: if he used any card at all in the bottom left, it would have been his won. It would capture sylph, and allow him to capture your next card (with either odin or his unknown, depending on what you played)
As you say, even with the last cards position, if he had bahamut it would have resulted in a draw.
Altho I call it luck, it isnt exactly luck either. It is a weakness (?) in the NPCs programming it. It can be argued that exploiting that weakness is a very legit and viable strategy tho. (I personally agree with that) I would say that its pretty hard at this point to get an idea on how to do that with reliability.
In my opinion your examples all still rely on the NPC making mistakes in order to win. I've certainly seen NPCs do that quite a lot; but on the flip side ive always faced NPCs that felt like they were cheating, as they seemed to even position their cards based on my cards values.
(leaving a 4 side open when there was no need at all to do so, however I had no cards that could flip that side)
So personally I'm always expecting NPCs to flip the tables on the player at some point. Simply not making as many mistakes would make the harder ones a heck of a lot harder to beat.
That all said, indeed your approach will help a lot of people who are still struggling to defeat him stand a far better chance.
It would be a lot less painful with a 3 star deck tho. (which is mostly what I ment with ''high rate of success'', farmable with a >50% win ratio if you play well)
..Those times when you wield a party of cactuars aside.
Well, on the brightside of this discussion, fortunately he doesnt drop any 5 stars. So no need for hardcore grinding.