What is the Matrix?

Howdy all

Oh my it's been quite some time since I last got in here! I hope you're all well! Miloch - you especially!

OK, I have a question for you über dudes and dudettes. Basically, I've made items which are supposed to be sold by a wizard.

Here are my questions:

1.) The Wizard is supposed to use "Components" just like Cespenar, to forge weapons/armors/helmets and stuff, by certain amount of custom items I have. Lile... 30 red crystals do one thing... 12 red crystals + 2 kings tear + 2 rogue stone do another... etc, etc, etc... How do I do that? You know... similar to Equalizer when it is getting forged.

2.) How do I make a custom wizard dude npc shop  

Thanks in advance!