History AvengersInfinityWar / TropesEToM

* KarmaHoudini: With most of the film being an unmitigated TraumaCongaLine for the heroes at the hands of an InvincibleVillain en route to the DownerEnding, resident BigBad Thanos ultimately gets to kick back and enjoy a job well done on an idyllic world. Yet, ''Film/AvengersEndgame'' brings up the KarmaHoudiniWarranty on Thanos.

* IdiotBall: Basically every single Avenger that gets a chance to talk with Thanos firmly grabs hold of this, as none of them ever try to reason with Thanos about the many logistical problems in his goal to eliminate half of life in the universe and only ever argue with him of moral grounds, not practical.

* IdiotBall: Basically every single Avenger that gets a chance to talk with Thanos firmly grabs hold of this, as none of them ever try to reason with Thanos about the many logistical problems in his goal to eliminate half of life in the universe and only ever argue with him of moral grounds, not practical.

** In ''[[Film/AvengersAgeOfUltron Age of Ultron]]'', Tony's biggest fear is revealed to be his friends dying at Thanos's hands, as shown in the vision Wanda makes him see, in which the other five original members of the Avengers dead. At the end of this movie, all of these original Avengers are actually still alive[[note]]except perhaps Hawkeye, who does not appear in the movie[[/note]]; instead, it's many of their ''other'' friends they've made since then (including most of the new Avengers, most of their close allies, and most of the Guardians of the Galaxy) who are dead.

** Rocket gives a few when he sees Groot disengrating after the snap.

* LittleNo: A completely devastated Thor lets out one at the beginning while he drags himself over to his brother's dead body after Thanos and his children teleport away off the ''Statesman''.

* {{Hypocrite}}: Thanos plans to retire to a farm after he kills half the universe, despite his claim that his demicide would be random, he doesn't consider including himself in that.

* FlingALightIntoTheFuture: In TheStinger, when just before Nick Fury fades out of existence, he places a call for help to [[Film/CaptainMarvel2019 an old friend]].

* HypocriticalHumor: Tony orders Peter to stop making pop-culture references. This is the Tony Stark who spent previous movies and this one (even after saying this to Peter) happily comparing his life and acquaintances to various things, including ''Literature/TheLordOfTheRings'', ''Film/TheManchurianCandidate'', ''Film/PointBreak'', ''WesternAnimation/SpongeBobSquarePants'', and ''Franchise/FlashGordon''. [[spoiler:(And [[Film/AvengersEndgame later]], ''Film/TheBigLebowski''.)]]

* HurtingHero: Rocket's conversation with Thor on their way to Nidavellir exposes just how much Thor has lost. It even leaves Thor in tears.
-->'''Rocket:''' What if you're wrong?\\
'''Thor:''' What else do I have left to lose?

** Likewise, Thanos made cameos in ''Film/{{The Avengers|2012}}'', ''Film/GuardiansOfTheGalaxy'', and ''Film/AvengersAgeOfUltron'' before establishing himself as the BigBad of this duology.

** Also for the first ''Film/GuardiansOfTheGalaxy''. The Guardians saved Xandar and retrieved the Power Stone, only for Thanos to swoop in and undo their victory ''off-screen''.

** Rocket [[Film/GuardiansOfTheGalaxy once joked]] that he doesn't have "that long of a lifespan anyway". By the end of the film, with Gamora dead at Thanos's hands and Star-Lord, Drax, Mantis, ''and Groot'' disintegrated in the aftermath of the BadassFingersnap, he's the only original member of the Guardians left alive.

** [[https://www.huffingtonpost.com/entry/avengers-infinity-war-directors-confirm-which-characters-died-off-screen_us_5af5f6fee4b032b10bfaa3a0 According to the]] [[https://movieweb.com/avengers-movie-galaga-guy-fate/ directors]], the offscreen casualties of Thanos's snap include [[Film/TheIncredibleHulk2008 Betty Ross]], [[Film/{{Thor}} Lady Sif]], [[Film/ThorRagnarok the actor who played Loki]] in ''[[ShowWithinAShow The Tragedy of Loki of Asgard]]'', and [[Film/TheAvengers2012 the Galaga Guy in the S.H.I.E.L.D. Hellicarrier.]] Conversely, they confirmed that [[Film/GuardiansOfTheGalaxy Howard the Duck]] and [[Film/SpiderManHomecoming May Parker]] survived. [[Film/ThorTheDarkWorld Jane Foster]], [[Film/SpiderManHomecoming Ned]], [[Film/ThorRagnarok Korg and Miek]], as well as [[Film/BlackPanther2018 Shuri and Nakia]] are all {{Ambiguous Situation}}s with the given reasons that revealing their fates would spoil ''Film/AvengersEndgame''.

* HostageForMacGuffin: Thanos gets three out of six Infinity Stones and the Infinity Gauntlet by exchanging them for people that their current holders care about. He [[IGaveMyWord keeps his word]] by letting three hostages live, and all of them don't get erased by him either. The dwarves, however, are not so lucky.

* FinalFirstHug: Tony Stark largely keeps himself emotionally distant from Peter Parker, rebuffing a hug from him in ''Spider-Man: Homecoming''. When Thanos's BadassFingersnap culls half the universe's population, and Peter is one of the victims, all Tony does is hug the terrified, crying boy as he disintegrates.