Cindered Shadows is a pretty good piece of DLC that helps give you even more of Three Houses to play.
It offers a little side-story involving the Ashen Wolves house that gives you some additional lore revolving around Byleth, along with introducing you to a great cast of 4 new characters.
Outside of the side-story, this DLC gives you the 4 characters that you can recruit for the maingame, some of the hardest paralogues in the game involving them, 4 (5 counting gender differences) new classes to throw your characters in, along with some goodies you can spend Renown on. One of these new things is a way to purchase support levels for units, helping speed up a process that could be tedious if you're focused on trying to get two units' supports up while also trying to do missions and not have them die.
It's overall a decent chunk of DLC that's only brought down by how you're forced to buy the expansion pass when CS is the only worthwhile thing actually included in it.
It offers a little side-story involving the Ashen Wolves house that gives you some additional lore revolving around Byleth, along with introducing you to a great cast of 4 new characters.
Outside of the side-story, this DLC gives you the 4 characters that you can recruit for the maingame, some of the hardest paralogues in the game involving them, 4 (5 counting gender differences) new classes to throw your characters in, along with some goodies you can spend Renown on. One of these new things is a way to purchase support levels for units, helping speed up a process that could be tedious if you're focused on trying to get two units' supports up while also trying to do missions and not have them die.
It's overall a decent chunk of DLC that's only brought down by how you're forced to buy the expansion pass when CS is the only worthwhile thing actually included in it.