Valter

tl;dr: Get hit, take a billion dmg, run away, Bonfire later

A good amount of the convolution with Valter's sets revolves around the choice of his A-slot skill. Darting Blow excels in player phase while retaining Valter's natural physical bulk in enemy phase; LnD performs slightly better in player phase, but has a noticeably worse time on defense. This set aim's for a bit of a middle ground by abusing Fury 3 and Cursed Lance stacking recoil to turn Valter into a lure and late-game nuke.

The most ideal way to have this set shine is during enemy phase. With 37 Defense, being in the mid-30 Speed tier, and juuuuust enough Resistance to tank hits from most unbuffed mages, Valter will rarely be getting one-rounded. Once player phase comes around, he can either retreat behind another unit and be saved for later, or attack and have a teammate reposition him (no pun intended) to a safe spot. The option of retreating is why Draw Back is preferable on this set, as it makes Valter trickier to kill in Arena defense.

For some clarification, when on defense, Valter has a marginally better matchup spread than LnD (three less losses, and one less win), and a notably better spread than Darting Blow as a result of the increased Speed. The crux of this set, however, is abusing the HP loss with Escape Route to pull a bait and switch.

As far as partners are concerned, Axe units with reasonably high Res, like Camilla, Hawkeye, and Anna work well. Valter can eliminate most red units for them, while they can usually take on the mages Valter has trouble tanking hits from. Camilla in particular can run Hone / Fortify Fliers to support Valter even more (Valter can also run the same skills to form a mini-flier core, if you're lacking a good red flier to complete the trifecta), while also matching Valter's movement, allowing for more flexibility with Escape Route. A WoM dancer is also a great option to have here, to either help Valter get even further out of range once he takes a hit, or use up Bonfire immediately after he takes damage.

On a smaller note, this build is arguably easier to come across and grind for, when compared to LnD 3, Desperation, and Flier Buffs. With potentially three Valters to work with, it could be worthwhile to add this build to his backstock of skills.

Budget build utilizing his amazing standard set and just filling out empty spots. He really got a great skillset and QR completements his standard set really well, allowing him to double on both offense and defense.
Probably switching things around once I got better fodder/free feathers for L&D3, but for now this will be more than sufficient.

This set is meant for a Valter that can duel melee units and survive in battles longer. Quickened pulse in addition to his weapon works really well with aether. Renewal is there to ensure that he will live longer enough to proc aether. Panic ploy can be replaced with Threaten def or a flier buff.

Preferred nature: N/A
Weapon: Cursed Lance
Assist: Reciprocal Aid/ Ardent Sacrifice/ Reposition
Special: Bonfire/ Moonbow/ Draconic Aura/ Ignis
A slot: Fury 3
B slot: Renewal 3
C slot: Threaten Atk 3 / Threaten Def 3

Valter has 53 Atk with this build, allowing him to score OHKOs on frail mages like Life and Death Linde and Delthea.

He has 36 Spd, preventing him from being doubled by majority of units and allowing him to double some of the slower units in the game. Combined with his Cursed Lance, he can even kill bulky units like Ephraim when he doubles them, the second hit activating his Bonfire.

His 37 Def makes him one of the tankier units in the game, allowing him to survive a few physical hits from many of the Sword users in the Metagame like Ryoma. Threaten Atk serves to further improve his bulk and allow him to survive longer.

Cursed Lance and Fury cause Valter to take a hefty 10 Damage after each combat. This makes him unable to effectively tank hits by multiple enemies in the same turn.

However, in the player phase Valter's movement capabilities as a flyer allows him run away to abuse Renewal and heal back the health lost.

This also lets him act as a pseudo-healer as he can use Reciprocal Aid to swap health with a low health ally and then heal from Renewal.

Reposition also allows for more mobility and versatility as he can reposition ally units over mountains, forests and lava.

His Special is Bonfire, which adds 18 points of damage to Valter. It has good synergy with Cursed Lance as it makes Bonfire a 2-turn cooldown special and allows Valter to kill nearly every non-green unit that he outspeeds.

This is my personal build for Valter. The cursed lance and Luna work well together.

Iote’s shield works well with Valter’s decent defense by reducing his damage from bows by a great amount.

Hit and run lets him occasionally play games with terrain.

And panic ploy is too good to let go of, and it works decently well with his HP.