We then see Claymore walking closer & closer to the center of the city, he's surrounded by Dark Goblins, but they've made a clear path for him, because due to the fact that Cadence & Shining Armor's Dome has covered the whole city, all of the Goblins are trapped in there, and are awaiting their master's next orders, and as Claymore keeps walking the Goblins are just standing there growling & hissing at him, when Claymore gets close enough to the big structures in the center of the city, he then shouts "GROOO-GAAAR!!!".
A few seconds later, a burst of black flames comes out of the top of the big structures, then we see glowing red eyes within those flames, then from out of the flames steps Grogar himself, he's about as big & buff as Big Macintosh, but still maintains a general resemblance to his G1 counterpart, but with a darker-shaded coat of blue fur, and has larger, pointier curved horns, and he's wearing a red collar containing all 13 of his Dark Soul Bells, with each step he leaves a shadow flame lit hoof-print, once he comes out of the burst of black flames they disappear right behind him, then Grogar looks down from the structures and says(in a deep & demonic sounding voice similar to that of Trigon, the one that was provided by Kevin Michael Richardson in Season 4 of the 2003 Teen Titans series) "Who dares to shout out my name in such a disrespectful manner".
Claymore then replies "I am Claymore, the lost son of the Twonicorn Tribe, for 5000 years you have been nothing but a plague on both my world & the Dark Dimension, all my life I have trained for your eventual return, now I am here to permanently end your tyranny, for my Home, for my Sacrifices, for my Ponies(if he was a human he would have said People)".
Grogar then laughs and says "You deluded twit, not even the entire Twonicorn Tribe could be rid of me forever, and you are foolish enough to believe that you can actually stop me, all by yourself?".
We then hear Twilight say "Good thing he's not by himself", then we see the Mane 6 & Spike making heroic poses while Twilight says "He has friends".
"What are you doing?" says Claymore "Get Out of Here!".
"Not a chance Claymore" says Applejack "We're here to help you take down Grogar".
"Whether you like it or not, we're staying right by your side" says Pinkie.
Then Grogar starts to laugh and says "Is this really the level of desperation you have reached twonicorn? Allying yourself with a Hodge-podge of different types of pony children".
"You won't be saying that once you see what these different types of ponies can do" Rainbow Dash tells Grogar.
Then the Mane 6 get into formation and Twilight says "RAINBOW POWER!", but nothing happens, and they all look confused, then they try it again and Twilight says "Rainbow Power!", but nothing still happens.
"Why isn't our Rainbow Power Working?!" asks Fluttershy.
Claymore then explains "Because the source of your Rainbow Power is the Tree of Harmony, as long as you remain on our Earth you keep a connection to the Tree, but if you were to leave the Earth or travel to another world outside our own, you sever the connection you have to the Tree, the only way to use your Rainbow Power without remaining connected to the Tree is to bring the Elements of Harmony with you to where ever it is you're going to go, once you entered the Tambelon city limits you went from being in our world to being in the world of the Dark Dimension, and since you didn't bring the Elements of Harmony with you here, you are unable to access your Rainbow Power, but you would have all ready known about that if you had learned the Rules of Trans-Dimensional Travel!!!".
Twilight then says(in an I Just Realized I Did Something Stupid type of manner) "Oohhhh".
Grogar then laughs and says "Very amusing, now then", he then has his Dark Goblins surround our heroes, preparing to attack, and our heroes stand close together & get ready to fight.
Claymore has his horns light up bright, but once they lite up, he then senses something all around them that was at first too well concealed by the massive amount of dark magic in the Dark Dimension for him to feel earlier, then he says "Wait, I sense something, it's faint, but it's all around us, I've never sensed this before, yet it feels so familiar to me somehow", then he GASPS while making a surprised expression in his face & his sun-glass slide down enough for us to see his eyes.
Twilight notices this and asks "Claymore? What is it?".
"Twonicorns" says Claymore.
"Huh?" goes Twilight.
Claymore then says "The Twonicorns, they're here, they're all here!".
"Where?" asks Rainbow "I don't see any twonicorns".
Claymore then charges up his horns and blasts out a massively powerful Revealment Spell, to reveal that all of the Twonicorns that disappeared along with Tambelon 500 years ago are all still alive, hundreds of them all over the city, each of them sealed inside of a dome-like magical energy pod that has kept them in stasis for centuries, and the Pods were both invisible & intangible so that they could not be seen or felt before Claymore sensed them and used his Revealment Spell to reveal them all, the Twonicorns are floating inside these Pods, surrounded by a strange transparent mist inside the Pods, it's as if the Twonicorns were somehow placed within a cryogenic state of suspended animation since Tambelon's previous disappearance so long ago, and some of these Pods even have a parent with it's child/children sharing the same Pod, after the Twonicorns are all revealed, Pinkie Pie says "Oh, Now I see them".
Grogar then looks around and says "The Twonicorns? They all Live?!", then he roar & tries to blast them with a dark magic blast, but the Pods are all unharmed, some of the Dark Goblins try to attack the Pods, but one of them just has his hand shatter like glass upon contact with the Pod, and That one of those Goblins fells no pain but looks at it's missing hand in confusion.
Spike takes off one of his armor-gauntlets & tries knocking on one of the Pods with his bare hand, he then says "These things seem pretty solid to me".
Then Claymore's sword stabs the same Pod Spike knocked on, then the Pod dissipates, and the twonicorn within falls to the ground still breathing, but is in a sleep-like state because it's too weak to get up, due to the fact that it has exhausted itself staying inside that Pod for so long, Claymore then bucks another Pod close by with his horseshoe, then the same thing happens to the twonicorn from That Pod, then Claymore uses his Twonicorn Sense and says "I see, only contact with Silver can break those Pods".
Then to keep safe from a bunch of attacking Dark Goblins, Claymore makes a protective dome-shield around himself, the Mane 6, Spike & the pair of twonicorns they already freed, Claymore then makes a determined expression and says to Twilight "Twilight, the situation has changed, these Twonicorns are in no condition to defend themselves, you and your friends must get all of the Twonicorns out of the city quickly, get Celestia & her forces to help you out".
"But what are you going to do?" asks Twilight.
"Grogar is mine!" says Claymore, then he blasts the dome away to get rid of the Goblins that surrounded them, and runs off to battle Grogar.
"Claymore Wait!" says Twilight.
Then Spike stops Twilight and says "No Twilight, don't you see, Claymore is trying to buy us some time, we need to get the Twonicorns to safety".
Twilight then tells Spike "You're right", then they go to tend to the Twonicorns.
Claymore heads over to where Grogar is, who is still unsuccessfully trying to destroy the Pods with the Twonicorns inside them, then Claymore gets on the roof of the same structure Grogar is standing on but from the opposite end, Claymore then says "Grogar! You want to be rid of the Twonicorns? Then start with Me".
Grogar then starts laughing and says "You Pathetic Fool, you think You can take Me on? I am Grogar, The Ultimate Necromancer, Master of the Dark Goblins, Lord of-", then a magic bolt from Claymore hits Grogar right in the face, making him shout in pain & stop talking.
Then Claymore makes a battle-ready pose and says "Shut Up And Bring It!".
Claymore did that just to get Grogar so angry, that he would get sloppy & forget about the other Twonicorns and focus solely on Claymore himself, and that did indeed work, for Grogar with singe marks on his face then gets really ticked-off, his eyes glow really bright red and he shouts "YOU DARE!!!!!!!", then their big battle begins.