what are some must have skills for dw build

Looking for some skills which comes handy in dw build.

And if you can please suggest some combos (1 or 2 mp).

 

Spinning slash = this skill cause magic proration
Flash blast = nice if you use shadow step or evasion build, and increase weapon attack of your main sword by 25%
Dual sword control & mastery level 10 = to negate the dual sword penalty (decrease the crit rate & accuracy) and bonus aspd from dual sword control
Godspeed = if you use Charging slash/shadow step + flash blast combo, since this skill boost unsheathe attack by 25% at level 10

 

Thank you!

 

Regarding combo it depends on the skills you take

 

The flash blast dmg when using shadow step is unsheathe?

 

Flash Blast dmg is physical, the attack if you don't move after shadow step, is unsheathe
The only other unsheathe dmg/skill for Dual Swords is Charging Slash

 

Non-DW skills would be:
Quick Draw for 30% 1mp regen for every skill that at least used 1MP.
Trigger Slash Lvl 10, for 40 AMPR and added +50% Motion Speed bonus to the next skill used. (I got this idea from Scye)
Well.. Impact for obvious reasons, and for proration too.
Buster Blade if you want that Heal and it works nicely with Spin if the enemy is KB'ed because Buster can be used from a bit further range. (Look up at Lynxia's usage of this skill)

Zerk for highest MP save you could prolly use. Watch out for the penalties though.