The Nord is shown at the start of the trailer fighting a zombie werewolf. At the end of the trailer, we see one of the werewolves burst out of the ground in an attempt to flee, only to be dragged back under by the Nord, who climbs out a second later.
The Nord's fight with the Werewolves really deserves mention as during the course of said fight he literally curbstomps one of them, shoulder checks three more, punches two or three in the chest, tackles two into the ground and snaps the neck of another with one hand. (The other hand was occupied holding his rather large battleaxe.)
Fridge Brilliance: It also shown how good the Ebonheart's (specifically Dunmer's) intelligence service is as they successfully track and locate the hidden tunnel under the fort while two other forces have to climb the cliffside, not knowing the tunnel's existance.
Though we finally understands why the tunnel is abandoned (and the information about it is not closely guarded) in the first place, as it's swarmed with undead werewolf. Attacking from there may shock the defenders but it's not justifying the trouble.
The Breton commander who pulls off acrobatic feats and kills a squad of solders in a manner that would make Altair gush.
The Altmer commando treating the gigantic melee and siege she's navigating through with appropriate Altmer disdain. She'll need more than a nigh-unkillable Nord badass and a spinning top of death-dealing Breton in her way to properly inconvenience her...
The Arrival Trailer. showing the three leaders from the Alliance trailer having to fight a platoon of dremora. It shows how much of a threat that they'll be, because the Breton ends up possessed and attacking the Imperial City with a army of undead while the Nord and Altmer barely escape with their lives.
This trailer really belongs to the Altmer Mage who holds her own against well over a dozen Dremora using her sword and truly impressive magical skills and she's the one who destroys the Dremora portal single handed. The Nord also puts in an impressive showing by looking at the biggest enemy in the room (a 20 foot tall flesh monster), then charging right at him (even tossing aside a couple of Dremora standing in his path) and actually managing to hold the advantage for the first half of the fight until the addition of a few tiny Scamps turns it less in his favor. The Breton sadly gets beaten by a Dremora wizard before getting turned into a zombie. The video ends with the Nord digging up the unconscious Altmer from the rubble and carrying her as POW.
The Siege Trailer, Ebonheart Pact lay siege to Imperial City. They channeled captured Altmer Mage' magicka to split wall of city using magic, their forces then charging straight to hordes of Imperial City's undead. After opening the wall, Altmer Mage then broke her own chain and fight her captors in terrible conditions. Meanwhile, The Nord determinantly goes Straight for the Commander as the Zombie!Breton's arrows take down his Argoinan companions. Showing they are just Red Shirt-s tailing the Nord. The trailer ends with The Nord facing The Breton to settle it once and for all.
The Confrontation trailer, which has a one-vs-one showdown between the Nord and the Breton. Here the former showcases the Lightning Bruiser aspect of the Nord race; he is an absolute monster in this fight, shrugging off a slashed wrist and several impaling stabs from the Breton's swords and arrows to toss him around like a ragdoll.
The entire Morrowind Announcement Trailer. However the most spectacular moment goes to the final shot of Vivec with Baar Dau stopped above it. Followed by a new version of the beloved Nerevar Rising version of the Elder Scrolls Theme and the titles.
The Summerset Trailer. We finally get to see Alinor, and it is beautiful. There are also several shots of mysterious shadow-figures in the background, which closer inspection reveals to be the Daedric Princes Mephala and Clavicus Vile, along with one shot of Nocturnal atop Crystal-like-Law.
Khamira runs toward the dragon and shoots arrows at it. When that does nothing, she picks up a sword on horseback and uses that instead.
When Khamira is thrown off the horse and is about to be dragon food, the Breton Hero, now having (fairly logically) become a Necromancer (and once again on the side of Tamriel), turns into a Bone Goliath to fight the dragon with his bare hands!
This one was especially fun because when last we saw the Breton, he was suffering a seemingly terminal case of Being Stabbed. But of course, this trailer confirms he's a Vestige; after his birth body was ruined, he likely went through the struggles of the release content like other player characters and managed to return to Tamriel, and is able to put the necromancy he was forced to learn to good use! Daggerfall Covenant fans in particular were really happy to see this.
Khamira attacks the dragon when it gets the upper hand, and the dragon snarls at her. She hisses back!
Sai Sahan arrives with an army and a mobile dragonhorn! Continuous attacks from the army and Abnur Tharn makes the dragon retreat, but before it can do so, Khamira jumps onto the dragon with her sword and ruins its wing, stopping it from flying away enough for Sai Sahan to shoot it dead.
Lyris Titanborn gets her spotlight in the Greymoor trailers. At one point she's dog-piled by five werewolves who drag her to the ground, only to send them all flying when she gets back to her feet. Then she one-hands another one, catching it by the throat and smashing it to the ground.
An epic confrontation between the three trailer characters (working together, no less!) with the Ascendant Lord in the High Isle trailer. The knight goes toe to toe with all three of them, using real-life greatsword techniques and raw strength to nearly defeat all three of them. They only win when they drop an entire stone buttress on him, pile-driving him into the castle below...and he still recovers at the end of the trailer.
Other Examples
Defeating Molag Bal himself in a one-on-one battle certainly counts as one for the Soulless One.
After getting through White Gold Tower.After defeating the last boss, you are outside, on Green Empire Way, a location many fans are familiar with from Oblivion. You look up into the sky, above the tower itself and see that the last anchor on Tamriel is nowhere to be found signifying the end of the Planemeld. The remains of the daedric prince's force are still present, but the chaos shown us both in the trailers and just outside the city is now calm, and Imperial soldiers, exhausted from years of fighting, how finally catch their breath at the doorstep of the capital of their once torn home. The three factions will still fight each other and war is far from over. But as the moth priest herself says, Cyrodiil belongs to the empire once again.
The good endings to the Harpy sidequest in Glenumbra. Instead of allowing the corrupt lord who hired you and a mercenary company to get away with instigating the harpy attacks for his own profit, you convince the mercenary company to stop the lord, money be damned. In the end, the Orc who travels around with you releases a caged harpy that then proceeds to kill the lord. And you end up getting paid anyway, because they found a cache of gems in the lord's possession.
The main questline for Summerset has numerous moments which count.
Many characters make a return in this expansion, such as Razum-Dar, Rigurt the Brash in a sidequest, Veya Reloth from Morrowind, Andewen in another sidequest, and Darien Gautier, who was presumed to be dead after the events of Coldharbour.
A Best Level Ever contender is Evergloam, in which you and the newly healed Darien Gautier raid Nocturnal's realm. Darien now has the ability to do a Combination Attack with the player using Dawnbreaker, which utterly wrecks Nocturnal's minions, so you basically get to curb stomp everything in your path. If you already played through the Daggerfall Covenant zones, it also works as a nice callback to the numerous battles where Darien was your ally as well.
Defeating Nocturnal herself while armed with the Dawnbreaker. Assuming the player defeated Molag Bal already, it means the Vestige has defeated two Daedric Princes in combat now.
If one does the side quests of the expansion before finishing the main quest, it actually ends up paying off. During the Council meeting after Nocturnal's defeat, the Sapiarch there condescendingly asks what have you done for Summerset. Cue several characters you've assisted while journeying throughout Summerset coming in to vouch for the good deeds you've done and forcing the Sapiarch to acquiesce to what they say. Even more are waiting outside in the main hall for you. Doubles as a Heartwarming moment.
In Murkmire, you can find dossiers for some of the main characters, with information about them and how best to kidnap them. There is one for you, the player, as well, titled "the Newcomer". The recommended approach? No less than twenty men, attacking in force. Even then, the dossier says you might be too strong, and that anyone who wants to try taking you on, does it at their own risk. You are certainly building up a reputation.
In Elsweyr. Khamira's rousing speech before her people, in front of a dragon, is nothing short of awesome.
Khamira: Now I will speak the words my people need to hear! We are Khajiit! We are the children of Alkosh, the daughters and sons of Jone and Jode! We do not run, even from Dragons! [...] Stand with me, people of Anequina! For I am Khamira, daughter of King Hemakar! I am your Queen!
For Captain Nala-do in Elsweyr. She is killed in a Heroic Sacrifice to protect Khamira. Later on, a necromancer raises her to do his bidding, only for it to become an Epic Fail when the risen Nala-do promptly kills him.
The final battle between you and Mulaamnir. The battle is designed to look tough, with you hardly able to hurt him until you blow the Dragonhorn, and otherwise must just survive a freaking dragon. The world event dragons are made for an entire group of players, while here, you are all alone. And winning.
Like with Summerset, Elsweyr has numerous characters returning for the expansion, such as Razum-Dar once again, Rigurt the Brash, Jakarn, Vastarie from Grahtwood, and Ashur from Morrowind. And just like before, they will show up at the end for Khamira's coronation.
If you're playing as a Necromancer, being the last man standing during a dungeon or trial, and then managing to nail that instant group revive with Reanimation and bringing the team back from the brink of defeat is an extremely glorious feeling, made all the more cathartic by the booming explosion that you emit when the ultimate fires. It is usually the biggest selling point for Necromancers for players who prefer a support role, and a vast majority of those who run that class have that ultimate unlocked and morphed just for the occasion.
In Markarth, Arana's boast about Reachmen's pride of freedom can be seen as this.
Arana: Free blood. That's what the Reach is. Freedom. In the Reach, we do as we please. Only way to stop us is to kill us. And we don't die easy.
