Sora's Establishing Character Moment is her heroically saving Elle from Kabaton... and this is before she even gains her Cure powers.
Sora's determination is very strong. Even when she's on the brink of defeat, she refuses to lose. This even scares Kabaton enough that he gives an Oh, Crap! expression.
Sora is faced with having to look inside a massive rock, since they think it might be a Sky Jewel geode. She simply hands Mashiro her bag, revealing she practices the Skyland Divine Fist martial arts style and breaks the rock in half with her bare hand UNTRANSFORMED.
Sora decides to try to be strictly average at sports, only to completely fail due to, in quick succession, someone scraping their elbow, causing her to beat the track team record, an ill-timed sneeze, causing her to beat the long jump record, and Mashiro's friends psyching her up, causing her to hit Kabaton with a ball from a fair distance away.
Tsubasa's father flying to save Tsubasa after he fell. Furthermore, he admits afterwards that he doesn't know how he did it - it was just adrenaline rush and parental instinct.
Tsubasa's rescue of Elle. It takes almost the entire episode and in that span, the poor kid is beaten up by Kabaton in his puni bird form, repeatedly mocked by the general, and almost drops to his death twice (first time from Kabaton throwing him out of the UFO, and the second time Tsubasa willingly lets himself fall because he was slowing down Elle's flying basket). And it only gets better when Elle grants Tsubasa the power of Precure and he transforms into Cure Wing.
Sora defeating a transformed Kabaton completely on her own is awesome enough for one episode.
Even better, after Kabaton is about to be killed by the Undergo Empire for having lost, Sora immediately saves him. He might have been her enemy but it's clear that Sora believes that no one deserves such an end.
Sora admits that she wanted to join the Azure Guard under Captain Shalala since she was saved by her. Due to her actions saving Elle... She's now an apprentice in the Azure Guardfor real.
Sora's fight with Beryberie. Despite the latter having a lightning-throwing glove and the former getting shocked when Mashiro and Tsubasa catch sight of the fight, Sora proves the superior fighter, stopping a punch from striking Beryberie's head as a show of strength and restraint.
The whole fact Shalala engages in Loophole Abuse over Sora being a Pretty Cure... and effectively brings all three Cures under her command, with Sora fighting alongside her fellow Azure Guard members both transformed and otherwise.
While what happensafterward isn't as awesome, the whole fact that Shalala noticed the Ranborg countering Updraft Shining, and attacked its arms before effectively telling Sora to finish it off, is.
Sora giving Battamonda an Implied Death Threat despite being tired from having purified the Ranborg. It's obvious that she's dead serious about it, since it terrifies him enough to retreat despite being a stone's throw away from victory. She made it clear that the piece of glass she crushed under her boot will be his head should he try anything.
While her debut episode had her use a butterfly shield as a way of defense, this episode outright shows Cure Butterfly's potential as an effective Barrier Warrior. She's able to summon multiple shields at once and even put layers on her main shield.
After being hit with an apparent no-win scenario last episode, it's quite cathartic to witness Cure Sky—who just regained her dream and resolve to fight—unhesitatingly disarm Shalala-borg; she, Prism, and Butterfly then save Shalala by purifying and immediately healing her. Between that and Sora not taking the bait to attack him, Battamonda finally gives up.
Skearhead is able to take down all four Pretty Cures, using portals and raining attacks down upon them, when a glowing figure comes floating down, whispering two words... "Hirogaru Change...", revealing Cure Majesty, who fights him to a standstill and rescues her fellow Cures from Skearhead's pocket dimension.
Cure Majesty's first real battle is full of this. She moves potentially faster than Sora, manages to replicate the Rapid-Fire Fisticuffs move from her Imagine Spot and doesn't allow the Minoton Ranborg to get a clean hit in or even stumble when she lands, always landing perfectly on her feet.
Skearhead's first Kyoborg, based on a skateboard, manages to send the main four Cures flying easily with a pair of flying discs. Cure Majesty just walks along, barely even ruffled, even counter-hitting them when they finally are about to hit her, causing it to send a more powerful flying disc she can't counter.
Sora smokes yet another sport, scoring a home run with her first time to bat and vaulting up into the air to catch the ball, and also having a powerful throwing arm.
When psyching up Tamaki, she lets her know that she shouldn't think that she's an ace who has to carry the whole responsibility of victory on her shoulders. As if on cue, the rest of the Cures drop in beside Sora, as she shows that she's part of a team, with the baseball team managing to win the match without Tamaki's participation.
Even without her Precure powers, Sora runs off to help fight off invaders, and manages to subdue a Ranborg by herself. And we get to see her Parkour skills in action again.
When Minoton returns to help Sky Land, he's revealed to have trained himself to use Kira Kira energy to purify Ranborgs. The same could be said with Kabaton, albeit with Fartillery.
How does Mashiro defeat Darkhead, considering they needed an overpowered Prism Shine to get through to the Empress in the previous episode, and he's possessed Sora? With the fact Sora is a Hero, so is able to resist his influence to the point Mashiro releases the smallest Prism Shine ever and obliterates the corruption of Sora and the Undergu Empress.
The episode and the series ends the same way it began - a hero in blue saving a young girl. This time, it’s Sora’s turn!
The Undergu Empress IMMEDIATELY rejecting Daijarg when he tries to manipulate her into allowing him to possess her, declaring that she doesn’t need him as she has friends, and forces him out of her body.
After so many speeches about how raw physical strength is the only thing that matters, the Cures definitively tear apart Darkhead/Daijarg's toxic mentality: people are fundamentally good, so there's no vessels for him (implicitly, that he wouldn't need to mold himself), and true strength is drawn from the desire to protect others. And they tell him this as their group attack, Soaring World Punch, resists and quickly punches through Daijarg's own attack.
