PF NINJA NEED HELP!!

cancerific You have to ask yourself these questions first:
Do I want the absolute maximum amount of damage or do I want some survivability mixed in?

If you want the absolute maximum amount of damage you should use a normal bow and have DEX/CRT/STR as your stats.
If you want some survivability mixed in you should use a special bow and have AGI/CRT/STR or DEX as your stats.

Let's say you want the absolute maximum amount of damage and chose normal bows, you should get multiple sets.

1 MPC clone set:
Weapon: Arcus Lilio s Rossam (DEF: 3 INT +6 MP cost -24% Magic R +12% Hate rise -20% Skill delay -1 sec light tolerance +5% Magic evasion -30%)
Armor: Personal preference since you already get all MPC from other gear and the 3s SD)
Additional: Ardour Chachenez s Rossam (Effect: DEF: 10-16 ATK: 20 INT +10, MP cost -30%, Ailment R +10%, Skill delay -2 sec, Item delay +1 sec, MP heal by defense in low HP.)
Special: Fish-Scale Earring (MaxHP +1000, MP cost -10%)

Low HP set: (use any set, doesn't really matter as long as it gets your HP low)

PF set (maximum damage 1 shot):

Weapon: Elemental bows s Bancho Muscle or Sauro II (if you can't find Bancho Muscle)
Armor: Ira reup s Suishin or Ultimi reup s Suishin (depends on budget and on enemy DEF)
Additional: Daiginjo up s Raton or 15% elemental xtals (same as above) or Monty Beret s Raton or 15% ele xtals (use this against very high DEF bosses)
Special: Adamantite Arrow s Suishin or Telon (same as above but generally Susihin is better because you can also use it in DPS set)

AL page: Ouvel, Arick, Mamonea, Teo, Gatekeeper, Sauro II, Vatendeth (pick your favourites but Vatendeth is the best against high DEF mobs and Ouvel is also a great option since oyu have a lot of critical damage already)

DPS set (switch to this set if you can't 1 shot and want good DPS through DOC spam):

Weapon: Sauro Shooter 5 s Muscle Colon (ATK: 297-302 ATK +19% Critical damage +5% Magic evasion +8% AGI +10 CRT +10 Skill delay -1.7 sec fire, water, wind, Earth elements to the physical +2%) or Elemental Bows s Muscle Colon
Armor: Ultimi reup s Suishin
Additional: Monty Beret s Raton or 15% elemental xtals) 
Special: Adamantite Arrow s Suishin

AL: Cheltil, Sauro II, Maelriel, Gatekeeper, Ouvel (gives you the 0.1 s sd you need from 1,7 sauro shooter and 1,2 from Monty Beret to turn it into a full 3 s)
Abilities: Use full QC to achieve 9 clone DOC spam

Skye You generally want to sacrifice some damage for additional survivability.
For example you should consider an AL Page that has Shelk in it, if you fight things that hit you often.
You also want to use the elemental special bows but there aren't any for all the elements, you don't really need one in my opinion though because of the upcoming special bow called Stardust Bow:
Special Bow, ATK +20%, Critical Damage +17%, Absolute & Magic Evasion +20%.
You also want to consider what you want your last stat to be. If you get DEX you can use Monty Beret but have to sacrifice a bit of damage because Adamantite Arrow gives 0.1 ATK more per stat. This will play a tiny role in those moments where you're just missing very little damage to oneshot something. If you go for STR as your 3rd stat just use Barbarotita reup or Seperation Arrow up. Generally it's a little bit harder to spam 9 clone DOC with a special bow but it's possible.
For your armor Exelis reup (coming soon) can help with that and the aforementioned additional Evasion but you sacrifice raw damage: ATK +8% MATK +8% Evasion +15% Magic R +13% Skill delay -1.8 sec

pingrek For the DPS set yes but not for the 1 shot set which is the main aim of a PF set since Daiginjo up ends up giving you more damage in 90% of the cases.

AianLacruzel You use Adamantite Arrow for the strength scaling or Thimble for the dexterity scaling. You can also opt for GR/RD if you want to of course for your special bow build if you want to use a different special equipment.

MITS:Servant I don't have one. What level are you? You must be lacking levels for sure. If you want to oneshot Almas try using a Dragon Paler up. Also like you said your xtals and al matter a lot as well. Abilities don't matter much for oneshotting but they do for spamming 9 clone DOC. There are a lot of videos on YouTube of PF ninjas oneshotting Almas on the International Server, just go and look them up.

I don't have a pf ninja but if your dex is that higher than str wouldn't a thimble give a little more attack until str is about as high as dex

Thanks pingrek !
After using thimble, my atk went up from 4.4k~ to 4.5k just a 100atk difference

Ill use this until i get aas >.<