Diablo IV: How to Get Griswold’s Opus – Best Duriel Farm

If you want Griswold’s Opus in Diablo IV, the fastest route is to target-farm Duriel on the highest Torment tier you can clear cleanly. It can still drop from broader endgame loot, but if this one sword is the goal, a focused Duriel loop beats spreading attempts across unrelated activities. In French this is the same weapon listed as Œuvre de Griswold.

The short version

• Target-farm Duriel first – it is the single most efficient boss to focus when you are chasing this sword.
• Run the highest Torment tier you can clear fast, not the one you barely survive.
• Use Nightmare Dungeons, World Bosses, world events, open-world elites, and chests as filler between boss runs.
• Judge a drop by its unique effect roll, not just the affixes – the stacking Critical Strike Damage range is what makes the weapon.

What Griswold’s Opus does

Griswold’s Opus is a Paladin-only Unique one-handed sword. Its defining effect is a stacking Critical Strike Damage bonus: each enemy you hit adds 1.0% to 2.0% Critical Strike Damage (the exact value scales with the roll), stacking up to roughly 50% to 100%. Once you reach maximum stacks, your Lucky Hit critical strikes gain a 50% chance to deal double damage, heal you for about 50 to 150 Life, and refresh the stacks.

That refresh-on-crit loop is the whole point. The sword rewards Paladins who hit often and crit often: keep stacks topped up and you get a self-sustaining cycle of bonus crit damage, double-damage procs, and healing. Because the per-hit value and the max stack value both roll within a range, two copies can feel noticeably different – a strong unique roll is worth more than a clean affix line.

Best way to farm it

Step 1: Pick a Torment tier you clear fast

For unique farming, the right Torment tier is the one where your run speed stays high and deaths stay low – not the hardest one you can technically survive. If your clear time jumps sharply or you are spending the session reviving, repairing, or kiting, drop one tier. A lower Torment you blitz will out-farm a sloppy higher tier over a full play session, and the drop method is identical on PC and console, so efficiency is the only lever that matters.

Step 2: Prioritize Duriel

Spend your boss time on Duriel rather than rotating randomly across activities. If you have a limited number of boss attempts, concentrate them here instead of splitting them evenly across chest routes, elite loops, and mixed events. Those are fine while you build up materials, but they are not where you go when the only question is how to get this sword quickly. If you also want to widen your unique pool while you farm, our Chaos Uniques farming guide covers the broader loot loop.

Step 3: Treat other drops as backup

Griswold’s Opus can also come from broader loot sources – open-world enemies, chests, World Bosses, Nightmare Dungeons, and large world events. Run these while you are already progressing glyphs, materials, or Paragon power, but treat them as filler. They are the slow route to a specific named unique, so they should top up your farm, not replace the Duriel loop.

Which Paladin builds want it

This weapon shines in crit-heavy, fast-hit Paladin builds. It wants you to connect on many enemies, build stacks quickly, and convert them into repeated critical pressure. If your setup already values Critical Strike Chance and Lucky Hit, the unique effect comes online reliably and the double-damage proc fires often.

• Best fit: melee Paladin builds with rapid swings, frequent crits, and strong pack clear.
• Still usable: balanced one-hand Paladin setups that want Strength, Life, and crit damage even before the unique effect is rolling.
• Less ideal: slow burst builds that hit infrequently or rarely crit, since they never sit at max stacks long enough to use the Lucky Hit bonus.

If you do not already have a melee Paladin to slot it into, the Holy Purifier Paladin build and the fast-hitting Zealot Zeal build both lean on exactly the rapid-crit pattern this sword rewards.

Common mistakes

• Overfarming a bad Torment tier: if a higher difficulty tanks your run speed, it is cutting your drops-per-hour, not raising them.
• Splitting boss attempts too widely: concentrate runs on Duriel instead of rotating across unrelated activities.
• Judging the sword only on a boss dummy: its stacking effect is far easier to feel in dense packs where hits land rapidly.
• Discarding a low-roll copy on sight: a middling roll can still beat a normal weapon if your build matches the effect.

What to check when it drops

Read the unique effect roll first. The per-hit Critical Strike Damage gain and the maximum stack value define how the weapon plays – a roll near the top of the 1.0%–2.0% per-hit range and the 50%–100% cap is what you are chasing. After that, weigh the supporting stats: a strong copy pairs Strength, Max Life, and added Critical Strike Damage with a high unique roll.

An early copy with a weak unique roll is still fine to equip while you keep farming. A strong unique roll with average affixes is usually a keeper for the right Paladin. The effect is what makes Griswold’s Opus special, so evaluate it around how fast your build can stack and hold the bonus – not just the raw item score.