Null Follow-up 3

I don't think it'll work against Desperation since Desperation doesn't guarantee a follow-up but let's you follow up before your foe. I think it'll work on Brash Assault, the fighter skills including Wary but excluding Special, both Myrrh's weapons, and Quick Riposte.

"Null Follow-Up 3 - Disables foe's skills that guarantee foe's follow-up attack and foe's skills that prevent unit's follow-up attack."

I think it's great. Looking at Armours specifically, Bold Fighter is over saturated. We've got Special Fighter, but not everyone's got a B!Ephraim to spare. There's VF and WF, but hardly anyone uses WF anymore and VF is a glorified QR. Not to say either of the skills are bad, just that BF is the most common skill used and for good reason.

I think it will be most useful on bonus units; generally they get loaded up on buffs so they'll be rocking better offenses/defenses and really only have to worry about things like BF/VF special procs and all. This will make them safer both in player-phase or enemy phase and then they can beat out the opposing team with pure stats. On other units, though, I'm not sure it'll be as good as the conventional B skills, it makes them safer, while competing B slots make them kill things easier.

First of all it doesn't do anything with things like Desperation or Vantage, as they only change when the character attack.
I don't think that null follow-up is that meta breaking, you sacrifice your B slot to deny the effect of some other B slot skills and weapon effect, it's a very good addiction on the game but it's still a little bit situational as you won't have a B slot against character that are not affected by that skill

this skill does not cancel Desperation.
Desperation only alters your attack order, but not giving you follow up attack. you need to get a followup attack for desperation.
the one that cancel desperation is Hardy Bearing.
So yeah, with hardy bearing and this skill, you pretty much have the vanilla FE, combat with speed and no cheating with desperation/vantage.

This thing is nice only against cheater like X Fighter, loli named myrrh, and dude named Ephraim.
if you are not fighting them, then it's a waste on your B slot.
well it will definitely affect Tier 20 - 21 though, since most of them are that refrigerators.

It's kinda like a reprint of Wary fighter for the new meta haha. The Avoid being doubled skill for a new Meta. Interestingly it also counters wary fighter. I think running it with Hardy Bearing and a Guard weapon would be interesting. Like a teacher that makes sure everyone is playing fair and no one is cheating hahaha