Fate/Prototype (From moments shown through the OVA Trailer)
Ayaka using Witchcraft to defend herself against Lancer and Misaya's canine familiars.
Saber's summoning. In which the former quickly destroys Lancer's spear with nothing but a single swing from Invisible Air, pushing the latter back a distance, all the while maintaining a calm and collected look on his face.
Granted, the spear he broke was a normal one provided to Lancer by Misaya, but point goes to how it was executed.
Ayaka's The Glasses Come Off Moment and activating her Command Seal in calling forth Saber.
Ayaka's face-off against Sancraid Phahn according to the script(though sadly offscreen) mentions that the room they were in was devastated in the aftermath of their battle, with Ayaka literally standing victorious over Sancraid as he lay dying on the floor after his defeat. And this is after her The Glasses Come Off scene from above.
The intense battle between Saber and Archer. It's basically the two tearing their way through from a subway station all the way up to skyscraper, at one point cutting said building in half in the process, and eventually culminating in Enki facing off against Excalibur which, according to supplementary material, ends in Saber's victory.
It's worth repeating: Saber defeats Archer's Ea analogue, without Avalon. The power of his Excalibur is so great that not only does it completely evaporate the apocalyptic flood Enki had manifested, but it obliterates the Star of Destruction, cleaves Archer himself in halfnote Though he manages to survive this and ultimately launches so far as to break atmosphere as a golden pillar of light reaching into space itself.
Archer here deserves props for subverting the most glaring weakness of Stay/Night's Gil. In the Unlimited Blade Works route, it was illustrated that his overreliance on Gate of Bablyon made his actual melee ability rather poor, to the point Shirou could overwhelm him. Here? He breaks out his personal Noble Phantasm right out of the gate, using it in its tonfa configuration to take Saber head-on and eventually even take the battle's lead, using his Gate of Babylon, Bab-ilu, purely as a sidearm or for cover fire.
Fate/Prototype: Fragments of Sky Silver
The Battle of Tokyo Bay: where Saber, Archer, and Lancer team-up in order to take down Rider as he tries to burn down Tokyo in order to kill Manaka. Even with their combined strength, Rider is so exceedingly powerful that Manaka has Assassin go behind the scenes and kill of Rider's Master and his clan, cutting off his mana supply in the process. Even then, he still has enough strength to use Dendara Light, an attack that takes a combined effort from Excalibur-Proto and Stella to counter. Ancient Egypt does not mess around.
Archer gets a special mention for utilizing Stella in the first place. Despite it resulting in his own death, he ends up dying with a smile on his face, signifying that he was satisfied with his end as he was able to protect the people of Tokyo from Rider. Now that's a true hero.
Saber himself gets a special mention in that battle as he takes down the Sphinx by himself, which is stated to be equal to three Servants in strength.
Manaka should get a mention as she basically manipulates the entirety of the First Holy Grail War to her own ends. In fact, the only real challenge she had come across would have been Rider. Afterwards, no one is even able to trouble her at all.
Special mention to the fact that at one point she stops Lancer's spear with just a finger. Even if Brynhild and her spear are powered by the love she feels for her targets, to which she feels nothing at all for Manaka, the latter is still basically standing against a Heroic Spirit of legend, and Manaka's basic reaction is amusement.
Saber's final act in the First Grail War after slaying Manaka and saving Ayaka's life is particularly gloriously Shonen. He's beginning to disappear, but the Beast has emerged in grievance of Manaka's passing. Saber's breaking apart now, and he has but a single operable arm and mere moments left he can sustain his existence. Ayaka's still out cold — Saber's the one thing standing between the Beast and her along with the world, and he's fading fast...but then, he hears familiar voices. Spurned on by the spirits of his rivals in this war, coming to his side nowto give him their hope, Saber raises Excalibur with his one working arm, gets a six-seal clearance on the Restraints of the Round Table, and one-shots the Beast back to the depths. It's even all-but-stated that, if Arthur had just gotten one more seal for maximum clearance to shed Excalibur's covering altogether that he would have ended the Beastnote and Manakapermanently right then and there.
