I would like to recommend a change to the Reduce Spell Cost and Reduce Feat Cost jewelry glyphs. They currently take a flat value of 203 Magicka or Stamina off the cost of abilities. This value seems about right, but the effect when combined with other forms of cost reduction (% based) is diminished.
For example, if someone wears 7 pieces light armor, they have 14% Spell cost reduction, and the Spell Cost glyph only reduces spell cost by 174 Magicka. This is going to have a larger effect on Bretons, with their great new 7% cost reduction and Redguards with their 8% on weapon abilities.
I think it would be better to see the jewelry glyphs give a % cost reduction. To find a fair value for this we can look at other similar bonuses. The Seducer 5pc set gives 8% Spell cost reduction, and is balanced with Julianos which gives 299 Spell Damage. A typical jewelry glyph is equivalent to 174 Spell Damage, or 58% of a 5pc set bonus. So 58% x 8% = 4.65 % cost reduction per glyph.
It would be best if this were a whole number, especially since I believe it rounds down to the nearest integer. So moving forward we can go with 5% cost reduction as a jewelry glyph value. This means that a piece of gold infused jewelry would provide 8% cost reduction. We can again check this relative to sets, since a piece of gold infused Spell Damage Jewlery gives 278 Spell Damage, very similar to a 5pc bonus of 299.
Now let’s check how this compares to the 203 flat reduction currently in place. 5% is equal to 203 for any ability with a base cost of 4060. There are a wide variety of skills right around this value, like Boundless Storm, Surge, Javelin, Teleport Strike, Cloak, and Talons. The 5% would be slightly better for expensive skills like Breath of Life and Daedric Mines. The old 203 would be better for inexpensive skills like Swallow Soul and Burning Embers, but I doubt many people were investing in cost reduction for these types of skills.
Now for stacking cost reduction, I would want to be sure that it cannot be too powerful (like reaching nearly 100%). I believe the maximum cost reduction would be Breton (7%) Sorcerer (5%) in Seducer (8%) and Alteration (6%) in 7 Light Armor (14%) with 3X Infused Spell Cost jewelry (24%) while affected by the Worm set (4%). This totals 68% cost reduction, so something like Hardened Ward (base 3510) would cost 1123. In the previous system it would be 1419. So a slight buff to stacking cost reduction, but doesn’t seem broken since a build like this build would have no defense or damage (giving up all sets, jewelry traits, and jewelry enchants). On more reasonable builds the 5% cost reduction would be more competitive with the standard 169 Magicka or Stamina Recovery. And it would be more intuitive in that it doesn’t punish combining different sources of sustain.
Edited by WrathOfInnos on February 23, 2019 8:27PM