I think a lot of people been complaining about this from what I seen. In general drakans are WAY OVERPOWERED. I know some of those who comment here are gonna defend their class since they use it and dont want a nerf, but anyways~ just think about it in the few points below.
1) Twin fighter has an insane block rate, making it very difficult to land a hit most of the time. On top of that, theres weaving and stuff that makes it even more difficult to hit. I know people will say "but twins have very low hp and def", enchant and craft aside, I dont think that hp mean anything if theres gonna be super high block rates and weaving spams. This point is my main complain I have about twins. For those who are gonna say "you just have to catch it at the right moment", go back to the reason of this thread. If its THIS difficult to defeat compared to other classes, then I would say its pretty broken and something should be done to balance it.
2) Combos- Like Dragoon, twins can EASILY execute 1 hit combos with their huge variety of skills and relatively low cooldown time. On top of that, both twins can attack to make 1 hit combos easy. That is their class specialty do nothing can be done about it. But yeah, if dragoon gets a nerf to balance 1 hit combo complains, twins should too one way or another.
3) Twin itself, I wont elaborate much on this point since again, this is part of the class nothing can be done about it. I just mention this to add on to first 2 points to emphasize how broken this class is. To stun or trap this class, its pretty futile since the twin can still go round attacking opponent.
Its time broken classes not just twins be nerf IMO. If these classes have such a huge edge over other classes, those who dont play these classes will be on the lower end of the chain. And I'm pretty sure it would be quite dull if everyone were to create twins invokers and what not just to balance things out. There will be those who go against this post pretty much because they have a Twin they main and dont want it to be nerfed, but yeah I hope this post gains some attention and something is done.