For Barbarian players, the Sabre of Tsasgal can change the feel of a build, especially when a one-handed setup needs more punch. It is a unique sword, though, so hoping to find one through ordinary drops can be a slow grind. If you want to make the search more focused, start by checking your stock of D4 items and plan your boss runs around the loot source that actually includes the weapon.

Build Your Key Supply First

Duriel, King of Maggots, is the boss worth targeting. The Sabre of Tsasgal sits in his dedicated unique pool, which gives each run a clear purpose. You need one Greater Lair Key to open the reward chest after the fight. Burning through your last key and then stopping is frustrating, so prepare before you start. Varshan and Grigoire are the practical choices for restocking. Their regular Torment Lair encounters are quicker, and repeated clears can give you a steady flow of the materials needed for Greater Lair Keys. Many players get better results by farming both bosses first, then saving the keys for a focused Duriel session.

Make Each Duriel Run Count

The fight itself is only part of the process. A clean build, a reliable group, and a sensible supply of keys will save more time than chasing tiny damage upgrades. Before queueing into Duriel, make sure your character can clear the encounter without repeated deaths. Keep an eye on the cost of every attempt, too. A simple routine works well.

• Run Varshan and Grigoire while your Greater Lair Key supply is low.
• Set aside enough keys for several Duriel attempts.
• Clear Duriel repeatedly instead of switching targets after one unlucky drop.
• Keep every Shard of Agony for the cube exchange.

Use the Shards You Earn

Duriel runs offer another chance beyond the chest. Each victory awards a Shard of Agony, and five shards can be placed in the Horadric Cube to produce a random unique from Duriel's loot table. That pool includes the Sabre of Tsasgal. It is still luck-based, but the exchange gives your unwanted boss trophies a useful purpose. Keep running the boss, collect the shards, and treat every group of five as an extra roll that does not require another Greater Lair Key.

Try the Cube When You Have Spare Materials

There is also a less targeted option. White-quality swords can be upgraded through the Horadric Cube and turned into random unique swords. The catch is obvious: the roll can land on any eligible sword, not specifically the Sabre of Tsasgal. It may take a lot of attempts, so this route suits players with materials to spare rather than anyone seeking a quick guarantee. The Purveyor of Curiosities can help you gather white swords before you begin, making the process easier to repeat. If you are buying D4 items cheap, keep enough resources aside for the Duriel route, since targeted farming remains the more sensible use of your time.