Fire Emblem Engage: Maddening Fell Xenologue 6 in 1 Turn (Low SI)

This was something else, and annoying to figure out.
Nil has 80 HP, 36 Def, 35 Res, 22 Dodge, and a flat 50 dmg/crit reduction. That's a lot that you need to break through, thankfully the 50 dmg reduction is applied after calcs, so you can deal damage if you go above ~80ish attack, which is most commonly done with Sword Power 5 and Reprisal+ on Alear. But you can also break that via crits, so long as you get above 72 crit chance, which I was originally checking on doing with Wrath on Eirika!Kagetsu/GM, but they only bust through with about 7 damage.
But then I remembered how Soren doubles the crit rate for Dragon units, in other words saying that Veyle would get up to 60 crit alone by combining Wrath with Soren.
So, here's a fairly unreliable clear featuring Wrath and Holdout+ (5k total SP) on Soren!Veyle, specifically Holdout+ because she just has enough HP to tank a second hit after Rally Spec and Fortify Def on the first hit with it. Also, although it is fairly unreliable, it is still very much possible to do on physical hardware, which I did showcase, because you have many other units to burn rns for her.
Thanks for coming along with this experiment of mine, I hope you enjoy yourselves, and be who you are, as it really is a lovely morning.

[@kalextsunade1925]

This is late but thxs so much
You help me do this thing in maddening and I was really struggling.
You’re my savior!! Now I can finally said I did the whole game in maddening without losing any unit ☺️

[@Athlen]

@@kalextsunade1925 Congrats on the accomplishment, and I'm glad that my videos have been able to help

[@backalleysurgeon7881]

I think a better way would be to use Panette!Tiki. Augment her dragon claw so that it has 50 crit. With wrath and Pannette, that adds up to 90 crit. Throw in some supports and this could be feasibly done much more easily.

[@Athlen]

I can see that being another way of going about this, especially with using suports, as I forgot they existed, though I will say at 90 crit you'll only have 18% crit displayed because Nil has 72 dodge, 22 innate and 50 from the tile he's on.

[@backalleysurgeon7881]

@@Athlen you'll need less hits though. Chrom's skill "Brute force" increases critical hit damage to 4x. You don't need holdout with Tiki since her innate 10HP and +10HP draconic form give a very high level of HP. So with wrath at 2000SP and Brute force at 1500SP, you have an even lower cost way to 1 turn the boss.
I'm a bit confused about how you hit such high crit though. I know Soren doubles crit, and wrath gets you up to 60. With Excalibur's 10, doesn't that just add up to 80?

[@Athlen]

Veyle herself also has 12 innate crit from her base Dex +3 from Soren, as well as 3 additional crit from Rally Spec and Dragon!Byleth dance, which is another 30 total crit including Soren doubling it for upwards of 110 total crit.
From looking at it though, what you describe for Panette might be better, 2 crit augments on Eternal Claw, which is possible with the update and endgame crystals, brings it up to base 45 crit, Panette would have 14 innate crit after both Rally Spec and Dragon!Byleth, which is 59 crit + 40, from Wrath and her skill, for around 99 crit, as well as doubling after both Spc/Dance and the hex, she'd have 43 dmg with just the claw +6 from the previous said and +6 from Veyle/Alear/Spur for 55 attack, Nil has 32 Def after Hex, so 23 damage before crit, which would be 92 dmg, with Brute Force, for 42 damage. So it actually looks like it'd be roughly the same, though Panette would typically have less crit rate, but a flat rate. And that's not counting supports too.