[3.8] Hanarashi's SSF Pyroclast Miner! Kill Uber Elder with a 5-link! Perfect SSF league starter :D

If you have the +1 stat on both weapons, those weapons will carry you all the way to late endgame (I killed shaper guardians, shaper, and red elder all with weapons with just the +1 stat.) To kill Uber Elder, you'll need a little more damage, so look out for weapons that have added spell damage, spell/fire damage, crit multi, or crit chance on top of a +1 (I would still say the +1 is the most important stat.) Having the "Trigger a socketed spell when you use a skill" craft is nice because it gives us a curse, but not required (you can do similar with a CWDT setup)

Kintsugi (this is my current chest armor):


I switched to this chest armor when I started optimizing for Uber Elder. the "20% less damage taken if you have not been hit recently" is super nice during the Uber Elder/Atziri fight where you are not getting hit very often. The 20% less damage will often save you from getting oneshot when something does hit you. Not the best option for mapping, but it will be fine in maps too if you don't have a second chest piece to switch to.

Belly of the Beast: (my old chestpiece)

The high %life is pretty amazing. The most well-rounded chestpiece for mapping/bossing defense on this build. Not optimal for Uber Elder, but should work fine for everything else.

Carcass Jack:

If dying once in a while isn't a concern for you, and you love damage, this is probably the chest for you. I personally would have picked this chestpiece for mapping if I found one during the SSF league. Great chest for speedy mapping.

Loreweave:

I considered this chest for Uber Elder, but I ended up going for Kintsugi instead, since the 20% less damage taken I think is better than the max res (I was also running low on divines, so I didn't think I could roll a loreweave with a prefect max res and high life roll.) If you are in SSF and haven't found the Kintsugi prophecy chain, or happen to have a near perfect roll Loreweave, I would recommend.

Kaom's Heart:

I've never actually gotten this unique to drop before :( The fire damage and life are pretty amazing, but having no sockets is pretty difficult to work around with this build. Some ways you could use this chestpiece with this build are to use a staff instead of one-handed weapons to get the 5L or 6L in the staff, or to use a shaper/elder helmet with a pseudo 6L (gems supported by... mods on the helmet.) This option will probably change the build pretty significantly, but is worth considering.

Well-rolled evasion rare:

We all know that SSF can be mean sometimes, and you may not be able to find any of the uniques listed above. In that case, use a rare with high life (life % with flat life if possible), evasion, and whatever resistances you end up needing (depends on your other rare gear.) It is also probably possible to role a super shaper rare that is better than the uniques listed above, but won't really go into that here, since this build guide is focused on how to make the build cheap and SSF friendly.

There are probably other options I am missing, feel free to leave a question in the comments if there is different unique you are considering for the build :)

The 9% of physical damage from hits taken as fire damage is nice, but not required. (Ideally, I would have one of the enchantments for Pyroclast Mine)

Spell dodge chance, life, and evasion! If you are in SSF, I recommend running every Atziri set you find until you get these boots (especially since Atziri is so easy with this build.) Until you get these boots, you can use a rare with high life, evasion, and movement speed (I was still able to kill shaper deathless with rare boots)

The "Added fire against burning enemies" temple mod would be pretty nice if you are able to get it. I would prioritize high life though.

Doesn't have to be a Stygian Vise. A leather belt will be fine as well. You will need strength on some of your jewelry for gem requirements (about 80 strength), but doesn't need to be on your belt. Strength is always a good stat since it adds a bit of life though.

Prioritize the flat life+%life roll if you are lucky enough to get one from the temple. You can get a similar amount of life by getting a high life roll+high strength roll on your amulet.

Again, try to get as much life as possible! Opal ring bases with high life would be amazing if you can get them.

Blood of the Karui is nice since with all our dodge chance, instant flasks are not as important (we usually don't get hit twice in a row in quick succession.)

Dying Sun is perfect for our build since the additional projectiles and increased area of effect both help our mines. This flask is pretty difficult to get SSF though. An alternative is to use an extra life flask instead.

Diamond flask for the crit, quartz flask for the extra dodge, and quicksilver for the movement speed while mapping (switch this out for a sapphire flask for Uber Elder.

Flat life abyss jewels if you are using Belly of the Beast, life % jewels if you are using any other chest. Mine damage, mine throwing speed, fire damage, spell damage, added fire damage to spells (abyss,) Crit multi, are all solid other mods to look out for