Ok, Plaquaed from Brawl Vault made a Character Mod Pack for Marth in Brawl, is Lyn from Fire Emblem 7: Blazing Sword, and her sound mod is included with the Character Texture mod, and of course, recolors, stocks, icons, etc. But, Lyn's voice mod over Marth is in English, because, I guess, he/she made the voice mod with a mix Lyn's voices clips from Fire Emblem Heroes and Warriors did performed by Wendee Lee, and Super Smash Bros. Brawl / Wii U & 3DS / Ultimate did voiced by Lani Minella. But for this time, I made a sound mod for the Japanese voice clips with the mix of Fire Emblem Heroes, Warriors and Super Smash Bros. Brawl / Wii U & 3DS / Ultimate. And of course, I added Lyn's voice clip from FEH of I recorded from the Official Japanese Web Site, while I made the Assist trophy sound mod. And her voice is still very cute, and I can't stop to love her Japanese voice.
More Lyn Sound mod: https://gamebanana.com/sounds/43163
And Lyn still loves you.
And Don't forget to Import Lyn's Model pac file over Marth.
2 Links are Optional, if you want to choose one, and you think is better:
1.- http://forums.kc-mm.com/Gallery/BrawlView.php?Number=30750 by AkaDarkZeroRmx with his contribution to ds22, Infernape and Blueyoshi005
2.- http://forums.kc-mm.com/Gallery/BrawlView.php?Number=217263 by Plaquaed
Optional for Brawl, Project M and/or Brawl Minus
Coming Soon for BrawlEX. I hope if Lyn are going to be a fighter for Super Smash Bros. 6 soon.