Zobear

Sometimes after the timeskip, fast-travelling to the cardinal's room and immediately running forward will clip you through into the big rectangular tables, and you're stuck until you fast-travel out

Another day, more testing... Lancefaire DOES stack. Any Crest that "increases MT/Atk" simply deals 5 more damage, and crests don't stack as far as I know. Switched out 3 Sacred Beast Roasts for 3 King of Beasts Steaks, since the +3 HP is better than +1HP/STR All that's left is to actually do it.

I explicitly remember Leonie has special dialogue with her paralogue's boss that amounts to:

Well, weapon effectiveness triples weapon might, so even if it tripled the added damage from Atrocity as well, the most it would ever add is 102, and like I said, the combat art damage is not affected by effective damage. However, Dimitri's crest upgrade after the timeskip is something i need to look into. Doubling ATK is BUSTED and it might make Dimitri our candidate after all. Damn, do you have a link to that? Might be worth looking into. SInce I'm on a NG+ run, I figured a crest item would help, but we know too little to theorise properly about them. We don't know the exact parameters Crests operate under, or how they affect damage dealt. Regardless, they will be used to increase damage. Just dunno by how much.

After some testing, I can say Annette's personal skill is treated as Rally Strength, and does not stack. Any Defense lowering skills are all treated as Seal Defense, and so do not stack. However, the "rattled" effect after being hit by a gambit lowers PRT, not DEF, by 2. Trying to stack this and Seal Defense results in rattled only lowering PRT by 1, no matter the order. So, at max, as far as I know, you can lower an enemy's DEF by 5, and their PRT by 1. I don't know for sure if "faire" skills stack, but will test so once I get Dedue to Lance S+.

Thanks! Will add that to original post.

Yeah, Lance of Ruin does has a unique skill, but it's kinda useless and only Sylvain can even use it so rip

Only Dedue, Bernadetta and Cyril learn Vengeance as far as I know. If Dimitri could, he'd be the prime candidate

I wanted to brainstorm the maximum amount of damage possible in a single hit. So far I've come up with this, using Dedue: 74 Strength +5(Max Cichol Statue) +4(Rally Strength) +3(Dimitri's Charm) +3(Hilda's Advocate) +3(Protags Sacred Power) +3(Dimitri A support) +2(Str +2) +8(Defiant Str) +6(Death Blow) +5(Lancefaire) +5(Lancefaire again) +10(King of Lions Corp.) +42(Spear of Assal against cavalry) +2(Vengeance base) +121(Dedue has 108 Health; HP +5, and the 3 King of Beasts Steaks raises this to 122, so vengeance can do 121 damage) This would do 297 damage to a generic (cavalry) enemy with 0 Prt. Getting a critical hit would do 891 damage. A crest raises this to 896. Suggest ways to increase. Will edit as we go along.