Summary
The Hellfire Torch is the chase mythic charm in Diablo 4 Season 15, and unlocking it sends you back to Old Tristram for a throwdown against all three Prime Evils at once. The unlock chain is longer than it looks, but repeatable once you get it down. Players are already looping the fight on a two-minute timer for torches, unique splinters, and salvageable mythics. Here is how to get your first Torch, how to clear the Uber fight, and what the infinite farm actually is before it gets patched, including the Diablo 4 Items you need to optimize the run.
What the Hellfire Torch Actually Is
The Torch is a mythic charm earned by clearing Uber Tristram, the hidden zone behind Old Tristram's fountain. Each clear drops one Torch tied to the character class that kills the bosses, and the rolls vary, so you repeat the fight to chase better affixes. The fight itself is repeatable as long as you can farm the entry item again; the unlock quest around it is not.
Step One: Farm the Three Prime Evil Splinters
The entry item requires three splinters: the Splinter of Destruction, the Splinter of Terror, and the Splinter of Hatred. There are two reliable sources.
The first is the Prime Evils themselves. Each splinter drops from its matching Prime Evil on Torment 10 difficulty, though those fights are effectively scaled to Torment 13 thanks to a hidden plus-thirty monster power bump. Drop rates are RNG-dependent, but the loot you collect along the way makes the grind worthwhile. Farming in a group improves both the splinter drop chance and the general loot table.
The second source is easier if you already play the season. Splinters can drop from the repeatable seasonal reputation caches, and they show up well before you finish the entire board. They can come from any cache row, including the infinite repeatable ones you keep earning as you bank more reputation. If you are unlucky farming the bosses, just keep doing seasonal content and the caches will eventually hand over the missing pieces.
Once you hold all three, put them in the Horadric Cube and transmute them into Wirt's Lucky Coins. Do not lose them.
Step Two: Find Cain's Ten Journals
The unlock step is pure exploration and only takes five to fifteen minutes. Ten of Cain's journals are scattered across the base-game zones, and you do not need either expansion to find them. As you approach a journal, a small teal dot appears on your minimap.
The journals tell a short chronological story of Cain's early adventures, with a couple of comic interludes: one entry has him drunk, another has him hung over and complaining about his head. They are roughly a minute each, and they are worth reading on a first playthrough. Once all ten are collected, a quest pops at the Imperial Library. Talk to Cain there, and he opens a dark blue portal called Cain's Memory, which drops you directly into Old Tristram.
Step Three: Wish at the Fountain and Fight the Ubers
Head down to the village fountain with your Lucky Coins in your inventory and make a wish. The portal to the Uber fight opens. A few rules matter. The portal closes once you enter, so you cannot bail out and rejoin later. On softcore, if you need to run to town and repair, port out and back through your own portal rather than taking the red exit, which locks you out.
The fight itself is all three Prime Evils at once, and the key rule is simple: kill them at roughly the same time. Focusing one target lets the others resurrect him. Diablo is usually the toughest of the three. When the bosses line up in a triangle and start charging giant laser beams, stand in the middle of that formation rather than outside it; that is the safe pocket. Watch your feet for ground effects, especially on longer pulls.
You can clear it with friends, and everyone gets a Torch from a single wish. If a full party each brings their own coins and wishes in sequence, one group run yields four Torches.
After the first clear, the farm is repeatable but leaner: you only need to farm new splinters and craft new coins. The journals and the memory portal stay open forever.
The Two-Minute Infinite Uber Tristram Farm
A community exploit is currently letting players run Uber Tristram on roughly a two-minute loop for Torches, unique-quality splinters, multiple mythic items, and gold. The mythics that drop are level-one items only useful for salvaging into Resplendent Sparks, but the Torch and the splinter drop every cycle.
The setup needs a second player. You start on the highest difficulty your main character can clear the Ubers on, use the coins at the Tristram well, and do not kill anything. Your friend sets their game difficulty to Normal, you invite them in, and they teleport to you. Now both of you are in your high-difficulty version of Uber Tristram. Kill the bosses; both players get loot on this first clear.
After that, the loop resets using fresh level-one characters. Your friend leaves the group and lands back in a Normal-difficulty instance of the fight. You log out, delete your character, and make a new level-one on Hard difficulty, picking the class whose Torch you want. Log in, accept your friend's invite and teleport, and your friend one-shots the now-Normal bosses while you collect the drops. Leave the group, invite your friend back to your Hard instance, have them leave again to reset their Normal copy, stash your loot, delete the character, and repeat. Each loop is about two minutes.
This is not an intended mechanic, and it is likely to be patched quickly. Community consensus is that no bans are expected for using it, since it relies on existing party and difficulty systems rather than an external tool. Treat it as a limited window, not a long-term strategy.
Final Verdict
The Hellfire Torch is worth farming legitimately even without the exploit. The splinter grind is the slow part, but the reputation caches smooth it out, and the Cain's journal unlock is a fun, lore-rich detour. Once the memory portal is open, every new Torch is just three splinters and a wish. If you have a willing partner, the two-minute loop can fill your stash with Torches and sparks before the next patch, but do not build your economy around it. Clear the fight the intended way on your main, use the loop only while it lasts, and expect an official balance patch on Uber Tristram loot cadence sooner rather than later. For players looking to prepare their characters for the fight and upcoming endgame content, buy Diablo 4 Items can help supplement their available resources.
