I'm trying to create a mod that adds a number of unique sets of armor across Skyrim. The idea is that each piece will have its own slightly sub-par enchantment, but the more pieces from a certain set you wear, the more magical effects you get. For example, the first set I have planned is scattered throughout Blackreach, and the individual pieces give bonuses to Smithing, Heavy Armor, Enchanting, or carrying capacity. Each additional piece you wear beyond the first would add something like fortify health, resistance to fire, etc.

What sort of script should I use to add these additional effects. I am something of a beginner to Papyrus and programming in general, and I'm not sure what functions or triggers to use. I'm not even sure where to start with my item script; I've done all the tutorials on the wiki, but I'm not sure whether to use variables or properties or whatever else to achieve my goal. Any advice?

You shouldn't need to use a script - just add a bunch of effects to your enchantment but conditionalise them to only apply if certain other pieces of equipment are being worn at the same time.

Cipscis