First off, I do not know everything about reforging nor do I claim to. I have played around a lot with it and found it very rewarding, yet wasteful and expensive. It may take 25-40 burns on a runic, 3 charges per burn, to get what you are looking for. It is a great way though to get a mod that you want to be over its cap. First the basics so you are familiar with what I am talking about.
http://uo2.stratics.com/items/runic-re-forging and
http://www.uoguide.com/Runic_Re-ForgingThe first thing I recomend is to check out these threads. They are all stratics threads and are extremely worth reading. Semmersets charts are invaluable when choosing your mod, runic, and reforging choices.
CorwinXX has an awesome how to reforge post which almost makes mine unnecessary.
http://stratics.com/community/threads/reforging-how-to.264020/ What I did was I experimented with making a luck suit as that is what he used as an example. It made it a lot easier to tell if I was understanding it or not. I don't have a whole lot of use for the suit I made but it did come in handy. Make sure that you read the entire thread of his because a lot of people asked different questions that I had been wondering so almost the entire thread helped me better my understanding. Semmerset adds a bunch of lists of mods and stuff. Those are a great reference and I am going to talk about his charts next.
Semmerset is a reforging genius and able to answer so many questions. He is extremely helpful so if you ever get a chance to ask him something, I highly recommend it. He has charts in tons of threads and Stratics went ahead and put them all in one place for easy reference.
http://uo2.stratics.com/items/runic-re-forging/semmersets-re-forging-charts . The charts are based on the materials that you want to use. It tells you which runic to use to get each mod and what to choose. For example, a lot of people are talking about 100% elemental damage. If you look at the second chart, it is the dull, shadow, copper runic chart. Scroll down the chart until you find elemental damage. It then shows that it is for a weapon. This one is obvious that it will be weapon only but other mods have categories for weapon or armor. In order to get 100% elemental damage with a dull copper you will have to choose exquisite/of quality and fundametal reforge but the downside is that it would not be able to be repaired and have a couple of other mods. So right off, you know that dull copper is not the way to go. Shadow and copper runics can get you a 100% elemental damage with only one to 2 mods using a powerful reforge. It would not be brittle or non-repairable. You will also not get 100% right away unless extremely lucky. When I experimented with getting a 100% poison mod on a sword, I made 23 swords before getting 100% poison damage as the only mod and I think that was lucky. Semmerset has a list of reforge caps here
http://stratics.com/community/threads/reforging-how-to.264020/#post-2104643 and then the different reforging names choices here
http://stratics.com/community/threads/reforging-how-to.264020/#post-2107850 To start reforging, you need to be next to a soulforge, then you double click your runic and target the item to be reforged. Make sure you have plenty of runics and I like to combine 2-3 of them together before starting. To combine runics, they must be the same type. The key to reforging is to only choose one name. When you choose more than one name you end up with more mods. For an example with the 100% elemental damage, if you choose exquisite and of quality, you will most likely get 2-3 mods. To get only 1 - 2 mods you would choose only grand artifice and inspired artifice. Choosing grand artifice only will give you a random mod. If you choose powerful, structural, or fundamental you will end up with more mods and then brittle or cannot repair. Once you have the mod that you want, remember to use POF on it!! I got all excited on a weapon when I was first playing around with it and imbued right after reforging and then it was a DOH moment when I saw that I wasted 2 runics, and some very nice imbuing resources for 48 durability. DOH!
I am not sure what else to add at this point because there is so much out there to get you started. If you have any questions, post them and I will do my best to answer them. Here is a screenshot of the reforge menu
