Corrin (F)

Initiate in the player phase to debuff with Dark Breath, usually for free because of the high Spd and Windsweep+chip damage from Savage Blow, before defeating the opponent when it attacks with weakened stats in enemy phase. Dragon buffs/Tactics can be applied to raise the Spd for Windsweep, and Atk to 53 so it does a bit more on the initial attack, as well as Fortify to tank even better in enemy phase. Distant Def can be swapped for Close Def, and Savage Blow for a Tactic or other form of buff.

Corrine chooses to side with Nohr in Fire Emblem Fates: Conquest.
She has a very unique Lord build but is still true to her canon promotion which is a Nohr Noble.

Lightning Breath is a reference to Smash since the weapon has a built in Distant Counter.
With Lightning Breath, she can have room for Death Blow for more Attack Power.
Rally Defense and Fortify Defense are essential for this Lord as her main focus is being a bulky dragon.
Dragon Fang is a special skill that she always gets in her original game.
Poison Strike & Savage Blow helps make up as her magical ranged attacks since Nohr Nobles can also use tomes.

All for the GLORY OF NOHR!!!

My current set on my Corrin, meant for those who don't like to inherit from 5 stars. Mainly a budget build, it further works on her amazing Defense to deal out a lot of damage. As a budget build, IVs can be almost anything with great results (mine is -HP +Res yet she still works), however, a +Atk, +Def, or +Spd boon is recommended. She keeps her default weapon, which works great with her especially when stacked with Threaten Res. The +Def on the weapon can also be +Spd or +Atk if you feel it will work better. Pivot is great for helping her teammates survive, and thanks to her great defense she can tank hits from things such as Hectors. Bonfire can be replaced with Ignis or Moonbow. The Brazen and Renewal combo works well in modes like Chain Challenge since she can either stay high on HP or get a little low to do more damage and take hits better. Threaten Res is the best C skill she can get without sacrificing a 5*, otherwise Odd Atk Wave from Ishtar is a great option. Like most defensive units, she likes Quick Riposte, even though her speed is often good enough to double anyways. She works well with red anti-mage units that have Reposition, such as Fir, and they do a great job of complimenting each other. Green Dragons and strong Green Mages will be her downfall, and with the introduction of Festival Elincia's dragon-effective dagger, she has to be wary around units with it, including Elincia herself.

Here it is. The definitive mixed phase Corrin powerhouse build.
Let's walk through the skill choices.

Dark breath refine is probably the strongest refine out of all the breaths, having a double smoke/seal skill in a weapon is very, very good.

Aether is to help give her sustain and tons of damage, because it will likely proc with Wrath. This special makes up for her somewhat lackluster attack, but specials like Bonfire and Ignis can go here as well.

Distant Counter--Corrin has a strong matchup against bows, and can sometimes tank mages, depending on the skills. Because she has adaptive damage, she usually performs very well against ranged units. Her high speed lends itself to this, so she doesn't get doubled.

Wrath is what gives her additional special charge and additional damage. 45 attack isn't exactly the greatest, but combine this and her adaptive damage she hits much harder than people expect.

Infantry Pulse is mostly here for me since I run an infantry team. This can be replaced with tactics, hones/fortifies as you see fit.

Flashing Blade 3 is what brings this build together. It allows Corrin to run Dark breath/DC while also giving her special cooldown charge. Her immense speed means this will proc on every hit, since she is faster than most of the units in the game, save some very fast swords.

Given the Wind Blessing, so when paired up with Gunnthra gives her an additional +3 RES during the Wind Season.

The combination of a SPD boon and her refined Lightning Breath puts Corrin at a nice 40 SPD, making it easy for her to tank hits and double. Darting Blow is more of an emergency skill if she needs to go onto the offense.

Gave her a RES Seal in order to make her a better mixed tank, and when paired with Gunnthra she'll have a RES of 28, which is on par with most mages.