History Recap / DuckTales2017S3E17TheFightForCastleMcDuck

* BiggerOnTheInside: Pepper and the Phantom Blot hide in a cardboard box while spying on Huey and Louie that is much too small to possibly fit the two of them inside.

* TheCuckoolanderWasRight: Dewey warns Webby that meddling in the [=McDuck=] family feud would only make things worse. Webby's good intentions end up making things so bad that the past, present, and future of clan [=McDuck=] all end up fighting, and Scrooge actually ''renounces his heritage''. Thankfully, they all make up by the end of the episode.

* FailedAttemptAtDrama: Played with regarding Dewey's attempt to fake his own injury. Instead of stopping the feud between the family, it only ends up escalating it, creating a different kind of drama than he had intended.

* FlatWhat: Phantom Blot's reaction to learning that Pepper not only volunteered to be on the mission on him but was the only one whom F.O.W.L. could ''get'' to volunteer.

* {{Foil}}: Matilda to Scrooge; the latter is a successful billionaire who is TheAgeless thanks to hard work and determination, whereas the former flops from one hare-brained scheme to another and has immortality thanks to the same Druid stones as their parents. The best example can be gleaned from the incident where Matilda stole Whiskers to practice dying hair for her "very popular" hair salon. Presumably she was the same age as Scrooge was when he had his shoe shining business.

** Webby is horrified to realize that all generations of Clan [=McDuck=] are arguing, including the "past" (the statues, Fergus and Downy), "present" (Scrooge and Matilda) and "future" (Huey, Dewey and Louie),

* IllTimedSneeze: Pepper, hidden under a cardboard box, sneezes due to the dust from the bag pipes, but both Huey and Louie think the other sneezed and say "Gesundheit" without thinking. After they leave the room, Phantom Blot accuses Pepper of almost giving them away.

* LeeroyJenkins: Louie being too impatient to do things in Huey’s more calculated and careful approach, tries to just smash his way through the whole process. In doing so he not only makes things worse, but inadvertently ends up helping their opponents.

* PercussiveMaintenance: When looking at the mystical stones of the castle, Fergus tries kicking to the stones to fix them. Instead, [[AgonyOfTheFeet he hurts his foot.]]

** The Phantom Blot willingly rescues and protects Pepper after he realizes how much of jerk he has been and even tries to earn her friendship once they escape.

* SeenItAll: Given his own experiences with sibling fights, Dewey assures Webby that Scrooge and Matilda's fight is a "squabble" since there's no punches, tears or parents stepping in. He eats his words when Scrooge calls out for his mother while Matilda vows to take him and everything he holds dear down with her.

* SiblingRivalry: Scrooge and Matilda's feud has been going since what's implied to be their days as children. The Duck triplets' own rivalry also becomes a plot point near the climax.

* VileVillainLaughableLackey: The no-nonsense Phantom Blot is partnered with an Egghead named Pepper who is a happy-go-lucky chatterbox. The Phantom Blot can hardly stand her, but eventually softens near the end when Pepper reveals that she was the only Egghead who ''wanted'' to partner up with him.

* WithCatlikeTread: While the entire [=McDuck=] clan goes into a full blown family feud, Phantom Blot and Pepper are sneaking around the room to get to the Blessed Bagpipes. The problem is that, unlike Phantom Blot, Pepper sneaks in ''front'' of their hiding spots instead of behind, until the former drags her away before she could get caught.

-->'''Dewey:''' "Bless me bagp-" ohhhh, ''that's'' why he [[CatchPhrase says it]].

* SneezeOfDoom: Played with. Pepper, hidden under a cardboard box, sneezes due to the dust from the bag pipes, but both Huey and Louie think the other sneezed and say "Gesundheit" without thinking. After they leave the room, Phantom Blot accuses Pepper of almost giving them away.

* SeldomSeenSpecies: Matilda plans on starting an emu farm, keeping one with her.

* AbsenteeActor: Donald, Della, Launchpad, and Mrs. Beakley are yet again absent (fifth episode in a row for Launchpad) though the former two are seen in Webby's family photo.

* NeverLiveItDown: In-universe. Matilda makes fun of the fact Scrooge needed "family money" to start his business, [[ContinuityNod referring to]] the NumberOneDime which their father secretly gave Scrooge as a child that inspired him to move to America in the first place.
-->'''Scrooge:''' Did ''everyone'' know about that but me?!

* {{Manchild}}: Scrooge & Matilda literally argue like children, including screaming for their parents.

* RealityEnsues: Downy and Fergus attempt FlippingTheTable to show how angry they are at each other, but because the table is too large, it's much too heavy for them to flip, even with both Scrooge and Matilda helping.

* MythologyGag: Scrooge and Matilda's feud is taken from the comic story "A Letter From Home". Scrooge calls himself Scrooge McScrooge, recalling a Brazilian translation where Scrooge was called Patinhas [=Mac Patinhas=], while in dub, his last name was [=McPato=], a direct translation of [=McDuck=], currently, [=McPato=] is already used in comic book translations.

* MythologyGag: Scrooge and Matilda's feud is taken from the comic story "A Letter From Home". Scrooge calls himself Scrooge Mcgrooge, recalling a Brazilian translation where Scrooge was called Patinhas [=Mac Patinhas=], while in dub, his last name was [=McPato=], a direct translation of [=McDuck=], currently, [=McPato=] is already used in comic book translations.

* MythologyGag: Scrooge and Matilda's feud is taken from the comic story "A Letter From Home". Scrooge calls himself Scrooge Mcgrooge, recalling a Brazilian translation where Scrooge was called Patinhas [=McPatinhas=], while in dub, his last name was [=McPato=], a direct translation of [=McDuck=].

* MythologyGag: Scrooge and Matilda's feud is taken from the comic story "A Letter From Home". Scrooge calls himself Scrooge Mcgrooge, recalling a Brazilian translation where Scrooge was called Patinhas McPatinhas, while in dub, his last name was McPato, a direct translation of McDuck.

* MythologyGag: Scrooge and Matilda's feud is taken from the comic story "A Letter From Home". Scrooge calls himself Scrooge Mcgrooge, recalling a Brazilian translation where Scrooge was called Patinhas [=McPatinhas=].

* MythologyGag: Scrooge and Matilda's feud is taken from the comic story "A Letter From Home". Scrooge calls himself Scrooge Mcgrooge, recalling a Brazilian translation where Scrooge was called Patinhas McPatinhas.

* MythologyGag: Scrooge and Matilda's feud is taken from the comic story "A Letter From Home".

* HoldingHands: A platonic example of this occurs when Dewey tries to reassure Webby that Scrooge's and Matilda's fight isn't so bad.

* AesopAmnesia: Louie has a bit of a backslide into his old habits of taking shortcuts to accomplish goals, [[DownplayedTrope though]] he does make the point that he would rather avoid a repeat of their dangerous and terrifying first visit to the castle; plus there are the high stakes with F.O.W.L to consider, so trying to cut down on time and effort searching for the artifact isn't entirely unreasonable. Huey ultimately reinforces this lesson and how it still holds up even under the current circumstances; rushing and going off of ill-conceived shortcuts will often lead to trouble down the line, and they cannot afford any of that. But, taking the time to do things carefully and follow the harder path will often reap better rewards.