General

@motoconcho : Buff duration.
@arkdude11 @envenomed @johny2toes : Ok.

Thanks all who answered my question.

Keep it for now.
Especially if you plan on doing Root Abyss since avoid doesn't work there the extra crit is nice.

Keep it till you have all 3 Inner Abilities unlocked and save up and buy a LOT of the special circulators (100+ if you can) then just go on a mass reset till you get buff duration.

@motoconcho: We're already at max attack speed with booster so +1 Attack Speed doesn't do anything for us. Buff Duration will always be the best choice for DB.

Wait until you get your 3rd line and stock up them circulators.

Buff duration since we're thieves.

what's better, +1 attack speed or buff duration? x_x

@janny1993: So... should i keep the 29% crit or reset it?
or wait till I get 3rd line inner ability and then reset it?

[quote=ShadowSkillz]I heard shadow meld gets buffed to 7 seconds? Is that true? So % crit is totally useless...
@mumbhaki @Mapleftwpplz : Ok thanks.[/quote]

I believe that is true, in KMS that is. Not sure about GMS or Maple Sea.
GMS seems to be moving apart from KMS and start using the content from CMS and JMS.
Personally, I prefer the level 150 equipment from KMS over the ones from JMS </3

But it only works when the attack actually missed.
I think Shadow Meld will be quit useless against the new bosses which hits us 100% of the time.

I heard shadow meld gets buffed to 7 seconds? Is that true? So % crit is totally useless...
@mumbhaki @Mapleftwpplz : Ok thanks.

@ShadowSkillz: 35~40% buff duration if you have rank S mech card.

@Mapleftwpplz: How much %buff duration do I need to get perma Fc assuming I have a S rank mech card?

it takes a lot more than inner ability line to get close to permanent FC...
he'll also need Mercedes cards, mechanic cards, maybe combat orders,