Whats the best/cheapest way to make airstones? for example Item A Item B Item C What to use and how much does it multiply
The important thing is that always use 3 items, because you get bonus then. I don't think there are combos effecting the air stone numbers. My theory is that the air stone value of the items are added together and it is multiplied by the 3 item bonus. You can put an Elcyum Crystal in the middle, and then you will have some chance to double the value. So it might worth a try if you are combining a lot of stuff at once, but I don't know the chance for it, and I only tried it once, and I didn't get extra. Most people make air stones from the junks they would sell to NPC. If I don't have 3 junks to combine I just fill the slots with single escape scrolls. I used to calculate the cost of a single air stones from my combines, and the cheapest one was around 5k adena.