Laslow

With the combination of a Speed asset, in-combat buffs, and assistance of turn-start buffs like Speed Tactic 3, Laslow can now reliably hit the threshold necessary to trigger quad attacks. His base attack of 51 (with his unique blade equipped) is also high enough on its own to make good use of a quad strategy, and low-cooldown specials like Moonbow can push it even higher.

For team options, Laslow can fit nicely into any composition whose members gain additional benefits from both ally proximity or buffs. Legendary Hector, Mamori, Legendary Roy, Christmas Marth, Legendary Marth, and Peony are excellent examples of units that can take advantage of Laslow's own abilities, and boost his own potential. The ubiquity of Laslow's unique weapon means that he can also carve a niche into mixed-movement strategies as the buffs are not restricted to any one movement type.

Laslow's vitals remain his biggest weakness. If Laslow is unable to kill his opponent on his opening, or suffers a heavy blow between his two combat rounds, he'll likely be walking away with a good dent in his HP. With a build like this, you'll be sacrificing skills like the Distant Counter and Vantage combination, meaning this build will see Laslow himself employing a player-phase strategy.

A build like this will often call for a tight formation of your party, biding what time you can until Laslow can surgically pick off the enemy nukes before being moved away from harm by another teammate.

brave weapons are grate both for vantage and galeforce builds.

Laslows low speed makes desperation rarely relevant, and mostly a free slot. lull skills is an option but for the price of your A-slot (for Distant Counter) you get the strong combo of vantage. and whit Def smoke in C-slot witch is often open you get an effective atk boost you lost from DC in A-slot

Runing Galeforce instead of a dmg special in a Vantage build does remove some damage, but whit a brave weapon activating galeforce is not hard and very potent. and Laslows high atk combined whit a brave weapon makes few enemies able to survive and strike back, and even if they do, Laslow got enough mix bulk to survive an attack or two.

so Combining the two builds is a fairly low cost for very high potential.

Pivot is the preferred assist to place Laslow as offensive as possible while also triggering His prf weapon

Very simple Brave Blade Build Laslow will most likely proc glimmer as long as heavy blade goes off and Atk smoke is used to help him proc heavy blade much easier, or you can use Def Smoke to do much more damage to surrounding enemies.

Weapon: Laslow's Blade (Eff)
Movement Skill: Reposition
Proc: Glimmer, Noontime
A Skill: Distant Counter
B Skill: Vantage
C Skill: Atk Smoke, Def Smoke, Pulse Smoke, Panic Smoke
Seal: Heavy Blade, Brazen Atk/Def 3, Brazen Atk/Res 3

Highest damage dealing brave weapon unit. At 58 attack (+10 merge, 10 dragon flowers, summoner supoort), he reaches 81 attack (+6 buff, death blow 4, +3 weapon buff and L!Eliwood bonus doubler), with an additional +6 attack if Def Smoke is in effect. Lull atk/def is golden on him as well, as it ensures he can bypass any visible buff defenses. That being said, hes still a big investment unit and being a infantry sword makes it hard to justify building him.

Weapon: Laslow's Blade
Assist: Flexible
Special: Moonbow/Glimmer allows him to get a guaranteed special
A Skill: Steady breath/ Warding Breath/ Heavy blade allow the guaranteed special with his brave weapon effect
B Skill: Vantage is very good with dual phase brave weapon, and also allows guaranteed special
C Skill: Def/Res Gap will work, but any gap skill works to activate his weapon's brave effect
S Skill: Brazen Atk/Def 3 for when in vantage range, but anything to help his attack or support will work