What DPS skill to use for my Farmer

Some Preface:

• So, I've been experimenting with something for a few days. I thought about how to efficiently farm both Vemonsch as well as Blue Bubble and high-level mobs.
• I'll leave out the thought process, and go straight to the observations:
• With a statless (which means no stat allocated) character at level 38 and the following equipment :

1. Duplex Knuckles (Wind elem) 364+C ,non statted
2. Sorting Dagger 15crit
3. Adv Garb AGI10%ATK8%CD20CR21 + Demonic Quasar
4. Bear hat + Zarth
5. Machina Ring + Seele + Ruzart
6. ATK + 2% and ATK + 6 Avatars

• And the skills:

1. Nature's Wonders (10)
2. Annihilator(10)
3. Martial mastery (10)
4. Brave Aura (10)

• I was able to oneshot all of the Venomsch, (but more importantly) was able to deal about 12000 damage max (because 100 crt rate) to Blue Bubbles. The skill was non smited.
• I never tested a smited skill yet at those locations. Slide is a good instant combo opener.
• I plan to use a Sub MD with MagicBlade skills, a better avatar to cover the 5% drawback and better xtals on equipment.
• The Knuckles could also be updated from 364 to 370+ or even 380+ (as evidenced by photos in the associated thread) and refined to +S

The plan:

• To invest all points into INT and LUK and act like a normal Storm mage, (with its own avatars) but have a secret hidden Dancer build that can one-shot Blue Bubble using Nature's wonders.
• Slide - > Storm will take care of most mobs, while Slide - > Nature's wonders will probably help with higher tier mobs...
• Advise me on whether I should go 0 AGI or a mix of INT and AGI.

What I need from you:

• What DPS skill to use?
• Finale seems like a good contender, but unless I get magic mastery and staff the damage will be too low for the amount of time it takes (multiplier same as burst for sub MD). And Skill points have already run out in the plan. I might have to use a stargem or something, but it's expensive AF.
• Burst seems good too if I can get 1000 CSPD. A few impacts will get it ready, and at least it won't catch me off guard. Also don't need mirage.
• Imperial ray seems almost better than Burst and Magic Device Finale in terms of raw multipliers, and with sub MD already in plan, I can probably use Element Slash.
• Any Physical Skill? I don't know, Knuckles already has pretty crap skills and with less AGI it won't be worth it. Demon Claw? Maybe.

 

KnuxMD benefits from Annihilator and Conversion, you can get a healthy balance of Atk and Matk to do Phys-Mag DPS.

Nature's Wonder is a physical based skill, it benefits from your Atk stat, and having Cdmg you can maximize its potential to reach 70-100k+ per hit when Smited. Tbh, 1HMD or StaffKnux setup can do more with NW as farming/sub dps.
If your going for 1HMD go for enchant as a main dps.