Melee Pierce and BK Skills

Pierce+% is an excelent stat for any Class (Except Monk...)
With my Bishop my Nemesis on Moss Golem went from 200k to 230k using Vatendeth Al.

But Pierce+% would only be useful on enemies that have high Def/Mdef.

If I had to guess it has to be rapid fangs multiplier. When you think about it if you have 2 skills: one that’s crit damage x2 vs one that’s crt damage x4, the crt damage x4 can use melee pierce more effectively simply because it has a larger relative effect.

Let’s put it this way if a mob has 1000 def, iron tsuba would make them have 1200 def. If we go with the theoretical crit damage x4, that’s 4 times you’re hitting an extra 200 def or 800 def difference total. That’s near 1k difference in usable atk (correct me if I’m wrong but the game subtract the mobs def from your atk first) which could partially explain the difference. I think the reason that it’s more noticeable on RF is because the multiplier is way higher than impact blow (it has to be to be hitting as hard as it does.)

This is just my theory though, take the info with a light grain of salt

Are we forgetting that Beast Knights other skills explicitly say they ignore enemy defense? That'd explain why -Pierce doesn't affect their dmg as much as RF lol...

Tyrant Edge doesn't state it, but it does ignore defense. If you look at the skill description for Impact Blow it says "Damage ignores Defense"

Barriers and Defense are two different things. Testing Impact blow Vs Luna Doll and 3i had no damage difference at all with Impact Blow lol...

-melee pierce effectively increases enemy defense. Which is why in this situation Rapid Fang dmg decreases, since it doesn't ignore defense, and Impact blow doesn't change, since it already ignores the enemy defense.