If it was emptied counters would effectively "never" happen.
There are not only obvious spells being used like evil gate and such but also stealthy ones, like zable fahr's fire breath (not screen freezing), that is a disguised gremlin spell.
Wait wait, enemies like Zable Fahr don't have counter in the first place, right? I thought counters are for regular enemies and small bosses. Are you putting counters on big bosses that don't normally have counters? I thought you were putting counters only to regular enemies and small bosses, because they don't randomly use skills, unless it's right at the start of the battle (ex: Poron, Nightblade, Bill/Ben) and/or HP threshold (ex: Bill/Ben, Lugar, Koren, BR).
Please think about it; with 0 luck stat you'd need to inflict 5(!) spell/tech hits BEFORE the enemy uses 1 - that will never happen.
Wait, what? How do you get 5 spell/techs before enemy uses 1 counter? Assuming the threshold for normal mon is 80, and the smallest Luck stat is 2 (Duran, Kevin), so... wait, I'm lost.
How so?
If enemy gets its aggro to 80, but while it's casting, if you damage it a bit, then aggro may be raised to 90, in which case, after the magic, it'll be reduced to 80, and since it's still 80, it'll use spell again -- x2 combo. And against the bosses, if it's 200, but you do enough damage to make it 220, then that's x3 combo. Etc etc. I think that's way too anti-Kevin.
Honestly, I think counters should only happen for bosses, and not regular enemies -- regular enemies are already pretty tough even without the counters, because of their random hp threshold moves (ex: Bloody Wolf x2 = you die). Not sure if anyone else would agree with me though.