History Recap / MyHeroAcademiaJointTrainingArc

* NoSell: Chapter 214 implies that One for All cannot be copied; making Monoma's attempt useless. It turns out that he ''can'' copy it, but he has the LogicalWeakness of copying powers at their base state, and thus being unable to utilize quirks that require storing up power (for a non-OFA example, Monoma couldn't copy Fatgum's quirk because it relies on a resource -fat deposits- that Monoma doesn't have much of), because he only has five minutes to do the stockpiling before the quirk runs out. One for All is also an extreme case of MagikarpPower, as it's only so ridiculously strong because the first wielder's quirk-transfer quirk allowed it to continue stockpiling power uninterrupted for nine generations.

* InnocentlyInsensitive: Pony is a little mean-spirited when comparing Shoji to the octopi she avoids in an aquarium due to how unsettling they are, to which he responds that he is used to that reaction. This notion is a {{foreshadowing}} to his backstory, which is explored much later in the series, which explains why that is the case.

* WhamEpisode: Chapter 213 reveals that One For All was storing other Quirks of the predecessors all along and bolstering them. All six Quirks will soon (for the first time) manifest within Izuku, the first being Blackwhip.

* NotSoDifferent: Monoma's backstory is revealed, where he is told that he cannot be a hero due to having to rely on others. He bonds with Shinso over this who's Quirk also requires him to be quick-thinking.

Izuku has a strange dream in which he witnesses the backstory of One for All's creation, and has the first wielder talk directly to him, which shouldn't be possible, before waking up to see he's activated One for All in his sleep and destroyed his room. But he doesn't have time to investigate it before Class 1-A and Class 1-B are put together for a training exercise with the companionship of Hitoshi Shinso, who is being tested to join the Hero Course. Each battle involves the teams trying to capture the other team and put them all in the 'prison' area. Shinso will spend one battle on 1-A's side and one on 1-B's, but the outnumbered team shouldn't complain too hard because for all his training, Shinso is inexperienced in actual combat and working in a group. Also, the game ends if four team members are captured, so the larger team isn't going to be harder to beat just because they have an extra guy.

Team 1-A contemplates strategy, but while that happens they're ambushed by Team 1-B, who used Shiozaki as a stalking horse (she's a bit put out by that, but it's necessary because [[BadLiar she can't lie, or decieve in any way]]), finding them with Shishida's enhanced sense of smell.

But then Shinso unveils a new trick- his mask has what he calls 'persona code'. You see, Shinso has always had an AchillesHeel in that his opponent must respond to him for it to work, and if they're smart enough to shut up, he's right screwed. His mask fixes that; it's fitted with artificial vocal chords that can alter his voice but not replace it, allowing him to trick others into responding to him.

Team 1-A eventually wins by using Tsuyu's mildly poisonous mucus (which Midoriya and Mineta recognize, because she told them about it in USJ). When Shinso and Kaminari are covered with the mucus, they smell like Tsuyu, confusing Shishida. Kaminari is able to regain some of his dignity after his humiliating Sports Festival defeat by tricking Shiozaki like he did Seiji in the Provisional License exam, shocking her with one of his pointers. Shinso proves that he can use Aizawa's capture scarf, and he and his teammates capture the other team members and end the fight.

* AlwaysSomeoneBetter: Aizawa admits that given Class 1-B being able to work together without having gone through any of the additional life or death struggles 1-A did, or the brutal training he put them through, that Vlad is a better teacher than him.

* BadassBoast: Bakugo not only boasts his team will get a clean 4-0 sweep, but none of them will take any real injuries.

* NotSoDifferent: Monoma's backstory is revealed, where he is told that he cannot be a hero due to having to rely on others. He bonds with Shinso over this who's quirk also requires him to be quick-thinking.
* OhCrap: Monoma's reaction to seeing Bakugo actually act as a team player, something he never thought could happen.

As strange things start happening with One For All, Class 1-A, 1-B and a new candidate to the Hero Course Shinsou Hitoshi band together to a joint exercise pitching one group against the other.

* KnowWhenToFoldEm: Pony knows she can't defeat Shouji when their battle ends up being the defining one among their teams. She decided to place herself out of his reach to force a stalemate, making it so that, while her team won't win, neither will his.

** Just as he readies a wind blast at Monoma, Midoriya barely has time to look down or react in any way other than shock to notice Blackwhip manifesting itself in his arm before it bursts out of his arm.

As strange things start happening with One For All, Class 1-A, 1-B and a now candidate to the Hero Course Shinsou Hitoshi band together to a joint exercise pitching one group against the other.

* WhamEpisode: Chapter 213 reveals that One For All was storing other Quirks of the predecessors all along and bolstering them. All six Quirks will soon (for the first time) manifest within Izuku, the first being Blackwhip.

Tsuyu Aoi, Koji Koda, Denki Kaminari, and Eijiro Kirishima + Hitoshi Shinso vs Kosei Tsuburaba, Hiryu Rin, Jurota Shishida, and Ibara Shiozaki.

* BreatherEpisode: After the intense high stakes of the Pro Hero arc, this arc has almost no stakes beyond bragging rights. [[spoiler: At least it ''was'' until Chapter 210.]]

* ChekhovsBoomerang: [[spoiler: Bakugo's grenades end up being important items again, one hundred chapters after their first use in the Provisional Hero License Exam]].

* ADayInTheLimelight: For class 1-B who have only had a smattering of focus in other U.A. centered arcs.

* DenouementEpisode: Chapter 217 deals with the aftermath of the training itself. It confirms that Shinso was accepted into the Hero Department and paperwork is in its way, confirms that Monoma is unable to use Eri's quirk, has Shoto reaching out to his father in order to learn about the flashfire (a point made before his turn) and hints again at a connection between Midoriya and All For One, this time on how the One For All is starting to mimic the latter's quirk by holding many quirks at once.

* KnowWhenToFoldEm: Pony knows she can't defeat Shouji when their battle ends up being the defining one among their teams. She decided to make herself out of his reach to force a stalemate, making it so that, while her team won't win, nor will his.

* NotSoDifferent: Monoma's backstory is given, where he is told that he cannot be a hero due to having to rely on others. He bonds with this with Shinso who's quirk also requires him to be quick-thinking.
* IShallTauntYou: Monoma (using Shinso's quirk) teases Midoriya about Bakugo causing the retirement of All Might; He does so as he is trying to get Midoriya to respond.
* SuperpowerMeltdown: [[spoiler:Just as Deku is about to fire a wind blast towards Monoma, One for All goes completely ''haywire''. Black tendrils of energy start to pour out of Deku's arm, literally dragging him around and attacking everything around blindly.]]
* WhamEpisode: Chapter 213 [[spoiler: reveals that One For All was storing other Quirks of the predecessors all along and bolstering them. All six Quirks will soon (for the first time) manifest within Izuku, the first being Blackwhip.]]

Izuku has a strange dream in which he witnesses the backstory of One for All's creation, and has the first wielder talk directly to him, which shouldn't be possible, before waking up to see he's activated One for All in his sleep and destroyed his room. But he doesn't have time to investigate it before Class 1-A and Class 1-B are put together for a training exercise with the companionship of Hitoshi Shinsou, who is being tested to join the Hero Course. Each battle involves the teams trying to capture the other team and put them all in the 'prison' area. Shinsou will spend one battle on 1-A's side and one on 1-B's, but the outnumbered team shouldn't complain too hard because for all his training, Shinsou is inexperienced in actual combat and working in a group. Also, the game ends if four team members are captured, so the larger team isn't going to be harder to beat just because they have an extra guy.

Tsuyu Aoi, Koji Koda, Denki Kaminari, and Ejiro Kirishima + Hitoshi Shinso vs Kosei Tsuburaba, Hiryu Rin, Jurota Shishida, and Ibara Shiozaki.

But then Shinsou unveils a new trick- his mask has what he calls 'persona code'. You see, Shinsou has always had an AchillesHeel in that his opponent must respond to him for it to work, and if they're smart enough to shut up, he's right screwed. His mask fixes that; it's fitted with artificial vocal chords that can alter his voice but not replace it, allowing him to trick others into responding to him.

Team 1-A eventually wins by using Tsuyu's mildly poisonous mucus (which Midoriya and Mineta recognize, because she told them about it in USJ). When Shinsou and Kaminari are covered with the mucus, they smell like Tsuyu, confusing Shishida. Kaminari is able to regain some of his dignity after his humiliating Sports Festival defeat by tricking Shiozaki like he did Seiji in the Provisional License exam, shocking her with one of his pointers. Shinsou proves that he can use Aizawa's capture scarf, and he and his teammates capture the other team members and end the fight.

Tenya Iida, Mezo Shoji, Shouto Todoroki, and Mashirao Ojiro vs. Tetsutetsu Tetsutetsu, Sen Kaibara, Juuzo Honenuki, and Pony Tsunotori.

Katsuki Bakugou, Kyoka Jirou, Hanta Sero, and Rikido Satou vs Kojiro Bondo, Yousetsu Awase, Setsuna Tokage, and Togaru Kamakiri

Monoma thinks that Setsuna Tokage is the best person to hand Bakugou a defeat, but Bakugou has other plans. He wants to give 1-A its first 4-0 victory of the training session. His strategy is simple: The others support him. He does have a better idea than LeeroyJenkins, though- he wants to seize the initiative before team 1-B can, and he knows he's the team's biggest offensive powerhouse.

Of course, they still fall into Tokage's fairly good trap. However, she failed to account for just one thing- Bakugou had all the 'I work alone' LeeroyJenkins tendencies beaten out of him several arcs ago. The plan would have worked ''perfectly'' for the 'leave-Iida-to-fry' Bakugou of the Battle Training arc, or even the Sports Festival arc, but he's had some character development since then. He's now willing to actually act to save his teammates, and to fall back and let them take care of things he isn't suited for. Like letting Jirou zap Awase with sound waves through his suit of armor, rather than trying to attack it head-on himself, and handing his teammates his grenades so they can destroy Tokage's body parts before they can reconnect with her main body.

Bakugou leads his team to the 4-0 victory he wanted, and {{Tsundere}}s at Midoriya when the latter praises him for it.

Izuku Midoriya, Ochako Uraraka, Mina Ashido, and Mineta Minoru vs. Reiko Yanagi, Nirengeki Shoda, Yui Kodai, and Neito Monoma + Hitoshi Shinsou

It's the moment you've all been waiting for- Izuku's battle against Monoma. Monoma sympathizes with Shinsou, since they both have 'non-heroic' Quirks. But while Monoma embraces his AntiHero nature, Shinsou isn't content with that. But they both agree that Midoriya needs to be taken out or at least pinned down- he's his team's heavy hitter.

Izuku's team worries about the issues he's been having with One for All (spoiler alert: they're right), but he brushes it off (he shouldn't). Gran Torino remembers something he really should have told All Might earlier, and tells him in a phone call as Monoma tries to rile Izuku up so he can use Shinsou's Brainwashing against him, and the others face off against each other.

Wasn't One for All supposed to be a strength enhancer? Then ''why'' has Izuku's glove just broken and what are those black tentacles coming out of his arm? Most importantly, can anyone ''stop'' them? As the tentacles rampage outside of Izuku's control, Uraraka tries to use a CooldownHug, and backs it up with Shinsou's Brainwashing. When Midoriya is brainwashed, the tentacles retract, and Midoriya has another vestige dream.

Aizawa wants to see his students' progress, so the battle resumes after Midoriya's brief lapse into unconsciousness (and spirit scolding). Uraraka proves her ActionGirl credentials by defeating Monoma after Monoma makes the mistake of using a One for All copy, which proves to be a dud. Izuku manages to defeat Shinsou using a brief spurt of Black Whip (before he decides to wait a bit before he adds it to his arsenal) and using Shinsou's own capture weapon against him. Shinsou and three members of team 1-B are captured, giving 1-A another 4-0 win.

Shinsou is allowed to join the hero course, and Izuku has a sort of mental block against using Black Whip again. The two classes socialize, and Monoma tries to hide his disappointment (he doesn't do all that well).

* TheBusCameBack: Shinsou returns, this time with the focus on him, as he has started a request to join the Hero Department

* ChekhovsBoomerang: [[spoiler: Bakugou's grenades end up being important items again, one hundred chapters after their first use in the Provisional Hero License Exam]].
* ChekhovsGun: One that was ready to fire ''waaay'' back during the USJ Arc. Remember when Tsu mentioned her poisonous mucus when explaining her Quirk to Midoriya and Mineta? She covers Kaminari and Shinsou with it to disguise their scent so they can ambush the B Team.

* DenouementEpisode: Chapter 217 deals with the aftermath of the training itself. It confirms that Shinsou was accepted into the Hero Department and paperwork is in its way, confirms that Monoma is unable to use Eri's quirk, has Shouto reaching out to his father in order to learn about the flashfire (a point made before his turn) and hints again at a connection between Midoriya and All For One, this time on how the One For All is starting to mimic the latter's quirk by holding many quirks at once.
* {{Foreshadowing}}: Shinsou's desire to join the Hero Course was shown from day one, and it was implied various times that he's been training under Aizawa. This finally pays off now.

** It's the second time a cold but well meaning hero in training has told everyone, specifically Midoriya, that ImNotHereToMakeFriends. It's lampshaded by Sero that Shinsou behaves like early Todoroki.
** Shinsou and Midoriya are fighting again, as are Kaminari and Shiozaki.

Wasn't One for All supposed to be a strength enhancer? Then ''why'' has Izuku's glove just broken and what are those black tentacles coming out of his arm> Most importantly, can anyone ''stop'' them? As the tentacles rampage outside of Izuku's control, Uraraka tries to use a CooldownHug, and backs it up with Shinsou's Brainwashing. When Midoriya is brainwashed, the tentacles retract, and Midoriya has another vestige dream.