[PhilD]

Originally posted by aldiss2:

The formula is now:
1) If FoA is Active, BaseCost=BaseCost/2
2) Cost = [Base Cost]
- Caster Bonus (Intrinsic Bonus + Item Bonus) * Base Cost
- Site Bonus * Base Cost

So it seems the minimum cost is 10% of the initial base, but they round down so you get 5 gem items for free.

aldiss

Interesting observations... so it looks like the Hammer on a Black Priest/Master Smith, with Forge of the Ancients, is close to the best you can do (80-gem items will cost 10, compared to the absolute minimum of 8).

Iron Faith really is better for this, with the random pick on Black Priests.