Diablo 2 Resurrected S15: How to Defeat the Colossal Ancients

Colossal Ancients remain one of the toughest endgame encounters in Diablo II: Resurrected. The fight itself has not been replaced in Ladder Season 15, but Patch 3.3 reduced the drop rates of Colossal Ancient Statues and Worldstone Shards, making the preparation phase more time-consuming.

This guide covers how to farm the five statues in S15, open the Colossal Summit portal, survive the Ancients' escalating attacks, and choose the final Ancient to secure the Colossal Jewel pool you want.

What Changed for Colossal Ancients in S15?

The biggest Season 15 change is how much time you may need to spend farming the materials for the encounter.

Patch 3.3 reduced the drop rates of both Worldstone Shards and Colossal Ancient Statues. Worldstone Shards remain part of Terror Zone farming, while each shard now drops alongside an additional item. Blizzard also increased the chance of Rare-quality and better items from Herald Tier 3 and above, giving Terror Zone runs more value while you farm.

The Colossal Ancient fight itself remains the same endgame encounter introduced with Reign of the Warlock. The main S15 adjustment is therefore the longer farming process before you can make another attempt.

How to Get the Five Colossal Ancient Statues

On Hell difficulty, Colossal Ancient Statues can drop from Act Bosses. They were originally tied to Terrorized Act Bosses, but the 3.2 update also allowed statues to drop from non-Terrorized Act Bosses. Terrorized bosses remain an important farming route.

The five statues are:

A boss can also drop a different statue, so you may need several runs to complete the full set.

Once you have all five, travel to Act V on Hell difficulty and place them in the Horadric Cube. Transmute them to open the red portal to the Colossal Summit. The five statues are consumed when the portal is created, so make sure your character is ready before using the recipe.

If you fail the encounter, you must farm another set of five statues for your next attempt.

How to Prepare for the Colossal Summit

All three Ancients are active at the same time, so survivability is just as important as single-target damage.

Life Tap is particularly useful for melee builds. Necromancers can cast it directly, while other classes can use a Life Tap wand or equipment that provides the effect.

Elemental resistance is also important because each Ancient uses a Conviction aura that reduces resistance to its element. Keep your resistances high before entering, and consider using Thawing Potions to increase cold resistance and maximum cold resistance against Korlic.

A few other preparations can make the fight more manageable:

• Carry plenty of Full Rejuvenation Potions.
• Keep backup equipment available in case you die.
• Use the arena's stone pillars to create space and block ranged attacks.
• Make sure your mercenary can survive long enough to provide useful support.
• Avoid entering before your main gear, resistances, and sustain are ready.

If you die, the encounter does not simply reset. The Ancients remain active, while the statues used to open the portal are already consumed, making a failed attempt costly.

How the Colossal Ancients Fight

Talic, Korlic, and Madawc fight together, and each Ancient is immune to one element while using attacks based around that element. They also begin the fight with Enchant effects that increase their damage.

The encounter becomes progressively harder as their health falls. Each Ancient gains additional abilities at around 50% and 25% health, while killing an Ancient also strengthens the remaining brothers.

The first Ancient's death gives the remaining two additional abilities. After the second Ancient dies, the final survivor enters its most dangerous phase.

Each Ancient can also summon up to five Protector Spirits. These minions are fast and immune to their corresponding element, adding another source of pressure when multiple Ancients are still alive.

For that reason, avoid spreading your damage across all three. Focus on one Ancient at a time and plan the kill order before the fight begins.

Talic, Korlic, and Madawc: How to Handle Each One

Talic

Talic is the fire-immune Ancient and uses Whirlwind to engage players at close range. At 50% health, his Whirlwind can leave fiery Dust Devils behind, creating dangerous areas around the arena. His final phase adds a Colossal Volcano with heavy Fire and Physical damage.

Keep moving around his attack path and avoid standing in the fire left behind by his Whirlwind. If Talic is your final target, make sure you have enough fire resistance and room to maneuver.

Korlic

Korlic is immune to Cold and uses Leap Attack, Bash, and Frenzy to close the distance. His 50% phase adds Cold Fissure to his Leap Attacks, while his final phase adds Blizzard on each leap.

Move away from his landing area immediately after each leap. Cold resistance is particularly important here, and Thawing Potions can provide useful additional protection.

Madawc

Madawc is immune to Lightning and primarily attacks from range with Double Throw. During his 50% phase, his ranged attacks can generate Charged Bolts around the target. His final phase adds Colossal Thunderstorm, creating a persistent area of Lightning damage.

Use the stone pillars for cover when possible and avoid remaining in one position for too long. Ranged characters should prioritize movement and positioning rather than trying to stand still and trade damage.

Builds That Can Handle the Fight

There is no single required build for the encounter, but single-target damage, sustain, and resistance management are more important than general farming speed.

Physical and magic damage can be particularly useful because the three Ancients have elemental immunities. An Infinity mercenary can provide resistance reduction, but it should not be treated as the only answer to the Ancients' elemental immunities.

Which Ancient Should You Kill Last?

The Ancient you kill last determines the pool of Colossal Jewels you can receive. Each Ancient is tied to two unique jewels, and only one Colossal Jewel can be equipped at a time.

Defender's Bile can also provide a chance to cast Bone Armor when struck, alongside its poison-related effects, so it can be relevant to poison-focused builds.

Decide which jewel pool you want before starting the fight. Then make sure your damage does not accidentally finish another Ancient first.

Still short on Ladder gear or backup runes for your Colossal Ancient attempts? MMOSO Diablo 2 Resurrected items can help you prepare your character without slowing down your farming progress.

S15 Takeaway

Colossal Ancients are not a new Season 15 boss, but they remain one of the most demanding endgame encounters in Reign of the Warlock. The main S15 change is the lower drop rate of Colossal Ancient Statues and Worldstone Shards, which makes efficient farming more important.

Prepare your resistances and sustain, focus on one Ancient at a time, use the arena for cover, and decide which Ancient should die last before the fight begins. That gives you a more controlled path through the Colossal Summit and toward the Colossal Jewel pool you want.