Luke:I don't even have a past to lose. But I've still decided that I'm me. It doesn't matter what you think. Here I am! If that's the source of the strength you're talking about, then I won't lose!
Asch returns the favor with one long, drawn-out word: I will make those words your last, REPLICAAAAAAAAAAA!! And then the boss battle itself kicks off.
The Awesome Music highlights both how awesome and how emotional the battle is.
Any cutscene where Natalia gets to show off just how badass she is with that bow of hers. She was providing cover fire against an actual gun at one point. Not to mention shooting Sync out of a tree effortlessly. And let's not forget the time she killed Largo.
Especially Jade's—one of the most powerful on your first playthrough, and complete with an awesome incantation: "Oh admonishing melody, arise in the name of the Necromancer! Mystic Cage! Now know what true power is!". Still, Luke's comes at the end when the party is fighting Van for the fifth time or so, Tear is singing the Grand Fonic Hymn, and Luke runs up, slashes Van a bunch, and then unleashes his Mystic Arte, Radiant Howl, finishing with the words "NOW YOU DIE!"
Luke: You're finished! Arise, resound, and become a blade of destruction!LOST FON DRIVE!!
Anise: Now the fun starts! FEVER TIME BABY, YEAH! And you don't stop!
Asch letting Luke go ahead and making one hell of a Badass Boast.
Asch: No, your fight is with me, Asch! No, Luke fon Fabre! Prepare to die!
He may have died in the process, but he took out every single one of the soldiers, including the ones that caused his death.
Jade's One Shot Kill of the Liger Queen in the anime by using Indignation. Jade also gets the honour of being the only one to damage Van before Luke finishes him in the final battle.
Not to mention his breaking the fon slot seal and one shotting Dist with Mystic Cage. Really, Jade gets the most Moments of Awesome in the anime.
Luke's resolve to take a human life if he has to and dueling the Oracle Knight in the anime. It was badass.
Notice how in the Tower of Rem scene where Luke uses the Ten Thousand Replicas, Guy holds down Tear. He touched a girl for the sake of Luke at the moment killing himself. Then remember Guy is still a bit timid around girls...talk about guts.
Being that he is a typical Non-Human Sidekick with a squeaky voice, unbearably bright demeanor and looking like a demented Moogle, seeing Mieu getting kicked and/or told to shut up can be quite a moment to the jaded JRPG player.
The final confrontation with the Big Bad is too awesome (and funny) to watch everyone in your party verbally own him, pickingripping apart the Big Bad's logic piece by piece and throwing it in his face.
What makes it even more awesome is you physically backing that up (provided if your chosen party is leveled up and well equipped enough of course). If you succeed with Luke and Tear in your party, you get a final round with infinite HP and TP where you can use any attack and combo you have on Van as much as you want until you trigger Luke's Mystic Arte, Radiant Howl, to end it.
The cameo team battle in The Arena against Reid, Mint, Philia, and Nanaly makes for easily one of the best fights in the entire game.
Best fight in the entire game nothing. A full four on four battle with what could be a fully functional and deadly adventuring team were they in the players hands was the best fight in the series.
Even though it can turn the tide of the battle and potentially wipe your party, Reid's Aurora Wall is very impressive. Equally awesome is the Theme Music Power-Up when a remix of Eternal Mind plays after Aurora Wall.
Reid: We will not LOSE!
During the final confrontation with the main villain, if you don't have Luke or Tear in the active party, whoever you control will have a unique speech once the boss loses a certain amount of health. Arguably Jade gets the best one.
Jade: I don't care about fate...miracles...faith...any of that. I care only about putting an end to what I began. That is why I will take back fomicry. [...] At least I can use it more effectively than you. [...] The fact that I didn't kill you is a sign my skills have dulled. [...] Once we strike you down, Luke and Tear will free Lorelei! Rest in peace!!
Anytime Ion shows that even though he looks like a kid, he's still the Fon Master and he will be listened to.
Tear's introduction deserves special mention. While most previous heroines in the franchise had been established as damsels in distress from the beginning (Mint, Claire, and Shirley in particular), Tear makes her entrance by infiltrating a manor and performing an assassination attempt on the Big Bad. Not to bash the earlier Tales ladies, but it was a breath of fresh air to have a lead female in the series to establish herself in such a badass way. The final kicker? She's the White Magician Girl.
Even better, had Luke not been there to muck things up, it would have worked. Tear could have ended the entire game in just ten minutes. Seriously, if Symphonia's Sheena or Presea weren't enough, this was truly the Tales game that showed off how awesome Tales females could be, and future Tales girls are almost always judged on how badass they are by comparing them to Tear Grants, Anise Tatlin, and Natalia Luzu Kimlasca Lanvaldear.
Related to the above, Luke stopping Tear is this with some Fridge Brilliance tossed in. Everyone including Van is taken out and/or weakened by the First Hymn Nightmare that Tear is using. Except Luke. Luke, a spoiledSheltered Aristocrat, gets up and gets in the way of Tear which, in retrospect, is massive foreshadowing just what kind of potential Luke has. Not to mention that one action ultimately is what kicks off the events of the game which, though it leads to bad places as well, not Akzeriuth since Luke would have been sent anyways, but the massacre at Sheridan and Ion's death are examples, ultimately pans out in regards to saving the world. This is the nail that sets everything in motion; Luke, against all odds, getting up and in the way of Tear's imposed task of killing her brother. Better yet, Luke's resistance to Yulia's Hymns is possibly foreshadowing he's another Lorelei.
The hyperresonance that sent Tear and Luke to Tataroo Valley becomes this when the truth comes out; it wasn't Luke and Tear who did it, it was just Luke. Luke, who unconsciously called on his power to protect Master Van - and most likely grant his wish of leaving the manor - sends them flying across the world. Luke's desire to be free and protect Van are what, ultimately, screws Van over.