I'm back, having finally gotten around to finishing Shadows of Valentia. This post will mainly be overall thoughts on the game and its unique(ish) mechanics rather than a focus on the last act.
---
Dunno how much anyone cares about a second opinion from some random guy on forums (considering we have how many review sources nowadays?) but for what it's worth, the game was overall very enjoyable. Again (and it feels like I've said it about a hundred times at this point) the fantastic voice acting really hammers it home. If this game was just text with voice clips thrown in like the last two games (I consider Fates one game) I would probably think it was just an okay experience.
The story WAS predictable, not to mention very straightforward. But eh. It still felt pretty epic to me; it was more like a brief part of the history of a continent that you get to play through than a story that you read to be surprised by the twists and turns. The fun characters made it worth the while... except Celica. Dunno. Maybe others will like her, but I sure as heck felt like she was boring. Alm is similarly straightforward and possesses all the heroic archetypes you'd expect of a main character, but he has this whole ex-farmboy thing combined with a headstrong attitude that makes him a bit more interesting than Celica and her "save Mila, save the world, sacrifice myself for the greater good" shtick.
I've heard some people complain about Weapon Arts being useless except for particular ones like Double Lion (an Alm-only art that allows him to double attack automatically with the brave effect). Granted, Double Lion is a very powerful art that I used a lot, but I used the other ones often, too. Most arts have a low enough HP cost that it's worth using them for the extra damage and accuracy to finish off enemies with a single strike.
Forging is... okay. It's really cool to upgrade your favorite weapons, and the system is well-implemented, but you'll never be able to forge everything you want to by the time the game's main campaign is over unless you're prepared to grind for ages. Grinding gold marks, while it is possible, takes too damn long without the game's DLC, which bothers me immensely. The silver lining is you won't really need to max forge things to be able to beat the game, given you're decent at strategy, so the DLC feels more like, "Hey, if you really want to make everything and everybody crazy overpowered, this is for you. Otherwise, just play like a normal person and you'll be fine."
The maps in this game were definitely lackluster compared to a lot of the maps in more recent titles. Sand is awful. Mass-spawning enemies are pretty annoying. Swamps are annoying. But I do feel like the game generally gives you the tools you need to get through these maps (pegasus knights, archers, warp), so it's not like you're expected to do the impossible.
Also, I love warp. What a wonderful movement option and another great way for clerics to support the party. Dropping a glass cannon directly on top of a zombie-summoning boss to oneshot him and disintegrate all his zombies is awesome. I hope this spell makes a return in future games.
---
AND NOW FOR THE REAL SHOW: SHIPPING WARS
Hot damn, I don't like the game's canon pairings very much. Except Mae and Boey. They're really cute. But Celica's boring and barely interacts with Alm throughout their journeys, and the whole "fated to be together" thing does not do it for me. I would much prefer to envision Alm with Clair, as their support conversations are super fun and they clearly hit it off. But nooo, they pair Clair with Gray. GRAY. I love Gray, he's a funny guy, but... ugh.
Also... Clive and Mathilda. They're amusing, and honestly I like their interactions, but considering how absolutely AWFUL Clive is as a unit (I'm talking a VERY below average horse unit) and how AMAZING Mathilda is by comparison, I cannot take seriously the kind of enemy-obliterating battlefield passion kind of relationship they have.
And then there's the eternal mystery: WHO DOES GENNY MARRY?
... I've gotten a tad too invested in this game's characters. I admit it.