How much stronger are STR shads compared Dexless LUK shads?

STR Shadowers are much stronger than LUK Shadowers, even with 4 base STR, though it's very hard to be a STRless DEXless Khanjar user without even scrolling for STR or DEX, but it can be possible.

DEXless, STRless Khanjar (Level 80 Secondary Dagger) user can be possible if you can handle stat equips without even putting points or even scrolling for STR and DEX. You need 60 total STR and 120 total (not base) DEX to wield a Khanjar, as well as Angelic Betrayal (Level 80 STR Dagger). It's one of the only secondary daggers ever in MapleStory, even though it's actually a shield, but it's scrolled with weapon attack for shield.

Here are the stat equipments for STR and DEX:

BASE STAT - 4 STR and 25 DEX
Maple Warrior - 0 STR and 3 DEX
Master Adventurer Medal - 2 STR and 2 DEX
Targa Hat (LUK) - 15 STR and 15 DEX
Glittering Altair Earrings - 2 STR and 2 DEX
Broken Glasses - 1 STR and 1 DEX
Spiegelmann's Rings - 4 STR and 4 DEX
Mark of Naricain - 5 STR and 5 DEX
Black Belt - 5 STR and 5 DEX

That leads to a total of 38 STR and 62 DEX on clean stat equipments. If you can include the Barlog shoes scrolled with Sunset scrolls, you can possibly add about 22 STR and 22 DEX without sacrificing LUK at all or even using 52 stat Horntail Pendant, and that leads you to a total of 60 STR and 84 DEX. You have enough STR for using a Khanjar and Angelic Betrayal.

Now all you need is 36 more DEX to be able to be a DEXless, STRless Khanjar and Angelic Betrayal Shadower. Targa Hat (LUK) can only be scrolled for DEX, so you can afford 20 DEX more on that hat. Finally, you get to scroll your Broken Glasses and Face Accessory for DEX by using Accuracy and Avoidability scrolls, respectively. Broken Glasses can add 2 more DEX, and any kind of Face Accessory can add up to 14 DEX. That leads you to a total of 120 DEX without sacrificing LUK at all or using 52 stat Horntail Pendant! You can be a DEXless, STRless Khanjar and Angelic Betrayal Shadower! You may feel free to scroll your Khanjar and Angelic Betrayal for weapon attack. I would be insanely impressed if you scroll them godlily.

As a matter of fact, Glittering Altair Earrings, Black Belt (if you can't afford well scrolled Witch's Belt), Blue/Red Sauna Robe, Blackfist Cloak, and Stormcaster Gloves can be scrolled for LUK and attack. If you scroll those items for DEX instead of LUK, you would be considered Low DEX, not DEXless. This also leads to DEXless Night Lords, though they already have Night Raven's Claw, a level 90 DEXless claw, so they don't need to worry about stat equipments that much. Timeless weapons, like all other ones, are very hard to obtain, since you need to collect items and stuff in order to make one.

Blackfist Cloak can either be used from Chaos Scrolls or LUK Scrolls. Any kind of gloves (except for mages) should be always used for weapon attack, unless you're a magician or a DEXless/Low DEX warrior. Also, Chaosed Facestompers are used for DEXless Night Lords, Low STR Corsairs, DEXless/Low DEX Buccaneers, and Low STR Archers. For Maple Warrior, you can party a person who has a maxed Maple Warrior, and tell him or her to cast it consistently.

Vacant Helmet (a godly level 130 helmet) isn't out yet, so I'm not going to include it. Even if it's out, it's very difficult to get, because you have to fight Aufhaven to grab that helmet. It's even more difficult than HornTail.

If there's something wrong with my post, criticisms are welcome. I hope this helps.