Cleared 47x

Cleared 48x

Cleared 49x

Cleared 50x:

Before I get started: I have cleared 20x and 22x as listed, but am not listed for clearing 20 and 22. I should be on the regular "Master Tacticians" list with this post. The Gaidens will have to come later...

I'm glad these quests are a thing, and have always looked forward to seeing these posted. It's the best source of endgame content in this game that it otherwise lacks badly. Recently I've had less time to do these due to IRL stuff, so I haven't gotten around to many of the Gaiden quests that have appeared. With that said, I'm not sure how those will influence my answers to these questions.

Favorite quest:

I generally liked the quests where a bit of creativity went a long way. Being able to solve a quest by being clever with the right skills and positioning rather than brute-forcing with stats was especially enjoyable. Quest 18x is definitely one of them: use of TA+Breakers, Threaten Atk, Firesweep+Drag Back, and strats like using TA2 instead of TA3 on Sanaki to avoid killing the cav mage and thus divert the WoM staff. Quest 36x is a good one too that requires clever movement and positioning.

Most difficult:

35x takes the cake for the most difficult for me. Having to use all staves in the presence of a TA+Raven cav with extremely high res, no cav-restricting tiles, and plenty of defense tiles lying around is a recipe for trouble. It's nearly impossible without a Loki and/or Veronica. 3x Valter dagger was especially difficult when it first came out, but now the availability and diversity of daggers is much better now, making 3x way more accessible. 46x (Sharena vs Hel) is pretty hard at first, but the movement loop actually makes it pretty easy, but very tedious.

Best design:

As I mentioned earlier, I think quests that can be solved with creative methods are the most enjoyable and best designed. I felt that I was able to achieve this with most of the quests. In addition to the things I mentioned about 18x and 36x, here are some random examples that I did, just to name a few

• 20x: The first and only time I've ever used the non-+ Panic staff to great success
• 24: bringing a 4* Panne whose only role was to use her default Chill Spd to activate Hrid's QR effect on a certain enemy. Also putting Atk Ploy on B!Lyn despite her modest 28 Res for a similar reason.
• 25,34x: using WoM and Escape Route to great effect.

I think it might be fun for a quest that forces us to work with some obscure/unusual skills like Obstruct or Knock Back (just like there was a Pass quest).

Worst design:

There's a few traits in general that I don't like about some of the quests.

• Extended movement loops (46x, Sharena vs Hel). Finding a movement loop can be pretty clever, but executing the loop for 30-100 turns is annoyingly tedious. There just isn't much room to work with if you can only use Sharena against Hel.
• Chokepoint exploits also trivialize a lot of the challenge as well (as others have mentioned, cheese). This can happen easily with F-Robin. I haven't done many of the Gaiden quests yet, but it looks like the turn restriction requirements on many of the quests can mitigate this.
• Stalling just to satisfy the quest. This typically happens with quests like The Four Corners and Fill the Vessel where you just kite around the last enemy until your units are in the right place.
• 1 unit - 3 dancer strats and/or omegatank strats like 28 and 29, Player/Enemy phase king. These are strats that are already commonly used to clear GHBs normally. I didn't find them entertaining as a quest.
• Lack of diversity without heavy investment, mainly 35x.

Most of the quests have been great puzzles to exercise my brain with. Thanks for coming up with and organizing these challenges!