Show you step by step how to approach items, make decisions, and ultimately slam uniques into powerful legendaries. Sometimes it works perfectly, sometimes it fails miserably—but that’s the fun of the system. By the end, you’ll understand how to recognize a good candidate, prepare them properly, and execute a slam in the Temporal Sanctum. Having enough Last Epoch gold will help you complete the attack easily.

 

Step One: Knowing What You’re Crafting

 

Before you touch an item, the most important step is understanding what you’re trying to make. For my next build—a Lich—I need an off-hand called Stygian Coal. Ideally, it should drop with Legendary Potential (LP). Legendary Potential determines how many affixes from an exalted item can merge into your unique item.

 

1 LP = one affix moves over

 

2 LP = two affixes

 

3 LP = three affixes

 

4 LP = the jackpot—all four

 

For my example, a 2 LP Stygian Coal. That means two affixes exalted catalyst can carry over. The priorities are critical strike multiplier and spell crit chance. Resistances like void and elemental are nice extras, but damage is the focus.

 

Step Two: Selecting the Right Exalted Base

 

Now comes the hunt for the exalted base. Since Unique has 2 LP, my exalt needs strong prefixes in crit multi and spell crit. The best-case scenario is hitting them at Tier 7.

 

In stash, I found a candidate:

 

T1 Crit Multi

 

Empty Prefix

 

T7 Elemental Resistance

 

Cold Resistance

 

Not perfect, but workable. plan:

 

Add spell crit as the missing prefix.

 

Use Runes of Havoc to shuffle the tiers, hoping the T7 lands on crit multi.

 

Manage forging potential carefully—because once it hits zero, crafting ends.

 

Step Three: Manipulating Affixes

 

Here’s where things get spicy. Used a Glyph of Hope to add spell crit without burning too much potential. Then came the Havoc rolls. The first shuffle went horribly—the T7 landed on cold resistance. But that’s crafting: you gamble, you adjust, and sometimes, you get lucky.

 

On my second Havoc attempt, the miracle happened. The T7 landed on crit multi, exactly where I needed it. That set the foundation for a top-tier legendary slam.

 

Step Four: Risk vs. Reward Decisions

 

With limited forging potential left, I had to make choices:

 

Option A: Upgrade spell crit to Tier 5, risking a big potential drain.

 

Option B: Push resistances instead, which cost less potential but offer lower payoff.

 

It landed perfectly at T5, giving the dream combo: T7 crit multi + T5 spell crit. With potential still available, I refined crit multi’s roll slightly higher. At that point, locked the item with a Rune of Creation—copying it so I’d have two shots at a good slam.

 

Step Five: Boot Example – A Simpler Craft

 

Not every item needs this level of complexity. Take Blood of the Exile boots as an example. What do almost all builds want from boots? Movement speed, cooldown recovery, and hybrid health.

 

If you only have 1 LP, all you really need is to force T7 movement speed onto your exalt base. That’s enough to guarantee it merges. It’s simple:

 

Add movement speed at T1.

 

Spam Havocs until the T7 lands on movement speed.

 

Done—ready to slam.

 

Sometimes, going for “good enough” beats chasing perfection.

 

Step Six: Belts and Problem-Solving

 

Not every exalt is ideal. When pulled out a belt that had none of the stats I wanted (necrotic damage, hybrid health, ward gain on potion). Disaster, right? Not necessarily. You can still salvage it.

 

Use removals to clear bad affixes.

 

Seal a low-tier affix to free a slot.

 

Add the stat you actually want (like necrotic damage at Rank 1).

 

Use Havoc and Chaos to shuffle and reroll until something useful sticks.

 

It’s messy, but even a “bad” base can become a functional slam candidate if you’re resourceful.

 

Step Seven: How to Slam in the Temporal Sanctum

 

Once you’ve prepared your exalted item and unique with LP, it’s time for the slam. You’ll need a Temporal Sanctum key. Right-click it to open the dungeon, then progress (or skip) to the boss, Julra.

 

Here’s how it works:

 

Always run at least Tier 2 or higher. At Tier 2, you can guarantee one affix of your choice will transfer.

 

Check your unique level requirement. Lower-level items can be slammed at Tier 2. High-level items (like Immortal Vice or Shattered World relics) require Tier 4.

 

After defeating Julra, interact with the Eternity Cache. Place your unique and exalted item inside, choose the guaranteed affix, and hit slam.

 

For Stygian Coal, guaranteed the T7 crit multi. Then rolled the dice: would the second slot grab T5 spell crit, elemental res, or cold res? Hit elemental res—not the miracle, but still very solid. And since I used the Rune of Creation, had a second attempt waiting.

 

Key Lessons for Legendary Crafting

 

Know your goal before you start. Don’t waste resources on random upgrades.

 

Havoc is your best friend. It can turn trash into treasure if you land the right shuffle.

 

Manage potential carefully. Once it hits zero, the item is locked.

 

Creation gives you insurance. Copy a good setup before the slam.

 

Tier 2+ dungeons are mandatory. Never waste a slam at Tier 1.

 

Conclusion

 

Crafting and slamming in Last Epoch can feel overwhelming at first, but once you understand the system, it’s incredibly rewarding. Whether you’re aiming for a perfectly rolled 4 LP legendary or just a reliable T7 movement speed boot, the same rules apply: plan your affixes, use your runes wisely, and know when to take risks. Have enough cheap Last Epoch gold to accompany you on your adventure.