Hello, and welcome to the guide; feel free to skip the next section of the guide if you don't need proof of it working and/or aren't curious about the results.

An explaination: I focused on getting raw damage on ALL my gear, there is a lot of room of improvement if you patiently farm the best part for every slot, that's why sometimes my gear has random buffs, or inadequate ones. (Sidenote: A lot of names refer to WoW, and I never intended on publishing this guide so please don't be hard on me for the cheesy names :P )

I've completed the game with 3 characters so far: A pure rogue that changed into a rogue-mage in the end( no SS for him since I did no min-maxing), a pure rogue, and a pure warrior. These are the two characters that I am going to use as examples - I am playing less now, but I will complete a Warrior-Mage run and then do a hard-only, peasant-clothed, pure mage. I got over 230 hours on the game, you can check my profile for updates.

First off, my pure warrior

Having armor for days, and Health for eternity, I felt bad for the last boss, and everything else before it too.
The worse weapon("Divine Favor") serves as a stat weapon, it's basically a slave weapon, it plays a big role in my character's HP pool, while also providing a minor damage increase. You basically always want to use your better weapon.

And then, my pure rogue
and his gear
Notable things: The armor makes you technically receive 0 damage from non-magic sources, having dodge on top of that for minimal damage taken. 64,5 million damage milestone was achieved with a non-blessed( from shrines), pot-buffed( some, not all) backstab. ONLY CHARACTER WITH MOST LORESTONE BUFFS!

----- Warrior/Mage hybrid will arrive some time in the future -----

You can start making your gear when you reach the second half of Klurikon( a.k.a. Alabastra). In Camp Moondown you will find Private Ellis, who sells Greater Damaging Bindings, that's the first step. Using the G(reater)D(amaging)Bindings you can 'exploit'( Note: you can choose not to exploit it, but that leaves you much more at the mercy of RNG, and can take sufficiently more time) the crafting system to create other GD components, this excludes: linings, strings, and trims | THIS NEEDS CONFIRMATION! although from my limited experience it didn't happen.

You can do this with whatever part you want, but the GDBindings are the easiest to get, for a really big level of power, and whatever your build (rogue/mage/warrior/any hybrid) damage is always either the best, or the second best stat( HP for warriors/might-hybrids); and you can get that, but it's not going to be easy finding a specific really high end component. You can attempt to go critical damage as a finesse character for your sneak attacks( it's always critical with daggers, if I am not mistaken), but raw damage is always better IF you don't just chase the biggest numbers.

The goes like this for getting a GD component from a required support component:

1. Get GDBindings.
   
2. Craft an item with it by following these steps:
   
   • select any core component
     
   • select any required support component
     
   • select GDBindings
     
   • skip any other support components
     
   • skip the gem
3. Save the game.
   
4. Salvage the item. If the sought-after component doesn't drop, then proceed to step 5
   
5. Reload and repeat steps 4 and 5 until it drops.

Important notes: ・Core component cannot be upgraded, using the best quality core component is all you can do, i.e. Prismere Daggers - Only use the best quality core component for the final version of your weapon, not the ones you'll salvage.

・For anything else 1) Use a low quality core component, 2) use a low quality required support component, 3) use a low quality component that you wish to upgrade, 4) use GDBindings, 5) skip gem - you basically do the same thing but add a low quality component for the component you wish to upgrade, you don't always do this because you a) don't always want that extra component, b) it's( probably) less odds for the required support component, at least that's what logic dictates.

Once you gather all the components you wanted with the quality you wanted, as well as the best quality core component for the item you're crafting, craft them all together in the best item possible - A GEM CAN BE USED, and to take it to the limits, you must use it, and to craft whatever gem you want, whenever you want, with the best quality, you'll need both Sagecrafting and Blacksmithing.
Tip for pure rogue characters: During the end of the Travelers faction questline you should betray Grim Onwig for the increased Dodge chance, as it stacks with the last 2 tiers of your Destinies, making Assassination proc more often for big juicy numbers.
Always remember you can Unbind your Fate to max out Sagecrafting and Blacksmithing, I suggest following it up with Alchemy for the best combat results, but that's not required at all.

Source for some stuff.[amalur.wikia.com] There is are Google Sheets with gems and Core component qualities somewhere in there too, I searched for a few hours but I can't find it, if someone is able to, I'd be grateful if they could link it.

----- Thanks for reading the guide -----
I hope you have fun unlocking your characters' potential. If you have something you want to add, let me know in the comment section below; stay awesome.

If you really enjoyed the guide, upvote, even favorite it, if not, vote it down, let me know how I did in general, as I am curious about it.