Who is your fastest hero

I have a Firesweep Oscar that has 40 base speed, and with Darting Blow, a Speed Seal, Cavalry buffs and a Support with Eliwood, he ends up with 56 speed.

I think thats way too much, so I use Fury and the Heavy Blade Seal instead, leaving him with 50 speed.

My fastest is Spd+ +5 B!Lyn who hits 48 without a speed seal. My second fastest is a Spd+ Basilikos Raven hits 46 speed, also without a speed seal.

However, the unit who's speed I'm most proud of is my Genny, who hits 39 speed at +6, (41 at +10, when I get her there) and usually is buffed to 45 since she's next to her Hone Speed partner.

my fastest unit is my NY azura with 44 speed no merges. my second is summer corrin with 42 speed 1 merge. both are plus speed IVs

My +10 Ayra and Raven with his refined Basilikos. Siegbert is also incredibly fast with his weapon and Swift Sparrow together.

In order:
1. Raven (Basilikos + Fury) - 48 Speed (unboosted; consistent)
2. Ayra (S-Rank SS + Speed Smoke + Squad Ace D) - 49 Speed (without SS or in arena, it's 47)
3. Siegbert (Dark Greatsword + Swift Sparrow + Hone Cavalry buff) - 35 Speed (41 with Hone Cavalry buff, 49 whenever he attacks)

Though, in order to make Ayra super fast, I have three other team using Drive Speed, one of them being Brave Lucina, and she hits incredibly hard with her Regnal Astra. However, my Ayra does not have a Speed boon, but rather Attack. If she does have a Speed boon, then she automatically wins as my fastest unit I ever possess.

Raven has a consistent 48 Speed because of the effects of his weapon, Fury and having a Speed boon. He's not fully merged like Ayra is, but he's still incredibly fast.

Siegbert is my all-time favorite Cavalry because of his unique niche in his weapon. Though, he does rely on buff support from his other Cavalry ally in order to reach said speed. But he is fun to use.

Lyn (LA)

36 base spd + 2 Ally support + 2 summoner support + 5 atk/spd bond + blarowl bonus usually 4 or 6 additional spd = 49 or 50 spd during combat. as a blue armored mage, she is dominant alongside Hector LA. I have her in a Ward armor team, but I may go the alternate route and push her atk and spd way up (I could hit 61 or 62 spd that way)

45 with my summoner supported +spd Lucy. Doubles just about everything in-game.

45 base with my +spd -def +2 merged Nino. However, my SS Celica has 43 base, but after Ragnarok boosts, ally support, and water blessing boosts, she gets up to 53 effective speed. Even with just Ragnarok, she has 48, which is pretty respectable.

My Ayra's in the lead with 43. Second place: Felicia with 40, and tied for third: Nino and +2 Soren with 39. Out of those four, only Ayra has a skill that lets her go faster (her native Swift Sparrow).

My siegbert has 42 speed with his build, 45 if he’s on a team with fjorm from blessings, then 49 on origination. I could go higher but I don’t use horse emblem

48 speed Selena 53 without brave sword.

Without buffs or 'during combat' boosts(but counting boosts such as fury) it's a tie between Ayra and NY Camilla with 44 a piece(thanks to Camilla counting Fury) Lancina and 4 star +10 Barst come in at a close second at 43 a piece, and they both have Fury(and Barst is Speed refined) Third place goes to Nephenee +4 merge with a speed refinement and using her default Atk/spd +2 A skill

This little girl comes first for me with 51 speed (with seal), followed by nephenee+1 with fury who reach 45 without seal

both my B lyn and caeda have 41, lyn has 45 when swift sparrow take place

Ayra +spd, has 48 speed with a speed +3 seal. 51 in water season.

My fastest unit is Ayra +3 at 47 speed with her speed seal. On player phase that can hit 51 speed, and on my main infantry squad I also run a couple drive spd 2 on fellow allies, which pushes her as high as 57 on player phase, and could still let her be at 53 for enemy phase. In my opinion, when you get into arena battles where you regularly see max merged Ninos that start with 46 speed and can exceed 50 with a single hone spd, too much speed is not a thing. I’ve seen builds of Amelia that can exceed 60 speed, and some iterations of LA Lyn have been calculated to flirt with 80 speed if the team around her is built to support her speed stat. I am definitely considering swapping out her native blade for a slaying edge after seeing it in action, and am also really wanting to slap wrath on her in the event I ever get a Nephenee.

My fastest unit is Lucina, at a base 44 speed. With any ally next to her, she hits 53 speed.