Controversial take: Remove Gunnhildr's Blade titles from everyone and fix the exploit

[CKNovel]

you will need to be more informative. What is the exploit exactly? all i know is that you are just buffing lost flare star ,other skills with essences, with valor buff and that just wreck the duels a. Are you talking about unger max equivalent?
do you have any proof?

I can explain it to you since it's not an actual exploit. Some youtubers explained it well.
What you need:
Ordained potion, Lost Excellence (25), Lost Flare (20), Chainspell (20), Banner of Noble Ends (10) and classic Intelligence potion+Your job buffs if you have.
+Don't forget Dispel (3) or Mirror (1) for Lyon/Menenius. Also take a potion of resistance since you're going to have low HP

First step:
Use the Bozjan potion Ordained
Aggro the dummy to be considered in combat
Load your set if it's not yet -> Use Lost Excellence
Swap to Chainspell -> Use Chainspell
Swap to Banner of Nobles ends
Int.Potion then zone in around 5 seconds before the duel starts.

Second step:
Use your job buffs + Banner of noble ends.
Swap with font of magic -> Use Font of magic.
Flare star and watch as the duel opponent melts. (Lost flare will tick at 300k)

I believe that's all. There's no real exploit like "clipping into a wall" but a massive imbalance due to lost Flare, you need ~75 space and the max is 99.
Lost Flare will benefit from a short window of 10 seconds and 5 Bozjan buffs except it will apply for all ticks, the boss won't last a minute and you will see one mechanic or two top.

An actual "exploit" is that a Dancer can grant you buffs like Lost Dervish, Devilment and Technical finish.
Attacking the Dummy allows you to use Lost Excellence&Lost Chainspell and to get a much wider window for Lost Flare but you can do it against a monster and since you don't need more than 80 space to fit all the buffs, in theory you can do it in a duel.