Blood Frost and Death Formosus the Undying Guide

Formosus the Undying, also known as Frost Lich Formosus, is the final boss of the Blood, Frost, and Death Monolith Timeline in Last Epoch. The fight takes place in the Layer of Formosus arena and features a single-phase battle focused on cold and necrotic damage. The fight can quickly become chaotic due to all the undead that will be summoned.

Here is a detailed breakdown of the major mechanics and abilities used by Formosus.

Formosus will summon three Undead Wengari Axe Throwers and one Undead Wengari Matriarch. Be particularly careful with the Matriarch as she will do a massive Earthquake attack accompanied by a big aftershock, dealing both Physical and Lightning damage. If you kill any of the Wengari, they will get resurrected eventually.

Formosus will launch a massive beam right in front of him. The beam deal Necrotic damage and DoT Necrotic damage. The longer it lasts, the more damage it will do.

Formosus will summon small frost tornadoes. They move in random directions, but are quite slow, making them easy to avoid. They stay quite long in the arena and deal Cold damage if you get hit.

Formosus will shoot out Cold and Necrotic missiles that seek the player. They are quite hard to evade as they seek you for a long time. However, they do not deal a ton of damage; getting hit by them likely won't be detrimental.

Formosus has two attacks that do not deal damage. He sometimes teleports to another location. It can happen that he teleports off-screen, so don’t be surprised if you suddenly don’t see him anymore. He can also leave an ice trail on the ground, slowing you down if you walk on it. Both deal no damage, but are just a bit annoying.

The fight is really one of the easiest. He has no massive mechanic that can actually one-shot you. Most of his attacks can be tanked, even if you get hit. Just be careful of the Cold and Necrotic damage over time.

• 75% Cold Resistance
• 75% Necrotic Resistance
• 75% Lightning Resistance
• 75% Physical Resistance
• High movement speed is extremely helpful

Formosus can drop four unique items and one Set item depending on the difficulty and corruption level:

Last Steps of the Living and Frozen Eyes of Formosus are both common unique drops with a 50% drop chance each. However, they are mutually exclusive—only one will drop per kill. These can appear in both Normal and Empowered timelines, and their drop rates are not affected by Corruption.

Frostbite Shackles is a rare drop that can technically appear in Normal timelines, but its chances are significantly better in Empowered Monoliths with high Corruption.

Eulogy of Blood is exclusive to Empowered difficulty and is considered a rare drop. Its chance also improves with higher Corruption levels.

Lich's Scorn is the set item that can drop in both Normal and Empowered Monolith, and at any Corruption level.

Normal Monoliths	Empowered Monoliths
Ambition of the Empire  Chill of Death  Cruelty of Formosus  Enmity of the Clans  Favor of the Wengari  Remorse of Heorot  Resolve of Frost  Savior of the North  Scars of Blood  Shards of Unity  Subtlety of Slaughter  Vigilance of the Damned	Grand Ambition of the Empire  Grand Chill of Death  Grand Cruelty of Formosus  Grand Enmity of the Clans  Grand Favor of the Wengari  Grand Remorse of Heorot  Grand Resolve of Frost  Grand Savior of the North  Grand Scars of Blood  Grand Shards of Unity  Grand Subtlety of Slaughter  Grand Vigilance of the Damned

The Harbinger for this Timeline if the Harbinger of War. She follows the Agile Archetype. She will keep some skills from Formosus:

• She will keep spawning the Ice Tornadoes. They are still as slow as before, so not very hard to avoid.
• She will channel the necrotic beam in front of him that deals Necrotic damage. You will see the trail on the ground before it launches, giving you enough time to move out of range.

Here is a breakdown of all major skills form the Harbinger of War.

Creates two portals on the ground. One will spawn next to the Harbinger of War, and the other one next to a player. After a while she will throw her spear into one portal, making it come back out the other portal. It deals low Physical and Void damage, and you can easily avoid it.

She charges and fires a beam in a straight line in front and behind her. This attack deals Fire damage.

The Harbinger dashes towards a player and deals low Physical and Void damage.

She sort of slides forwards towards the player while performing quick attacks with her spears in front of her. This attack deals low Physical damage.

Big Orbs will appear all over the arena. They deal Void damage is you touch them. They don't stay forever, so make sure to keep a safe distance.

She will fly up in the air before slamming down heavily on a telegraphed area. This attack deals Void damage.

The Harbinger will rush towards one of the players. Deals Physical and Void damage.

She will perform a quick spin while slashing around her. This creates a blast that moves away from her. This attack deals Void damage.

She will mark the ground with two spears before detonating them into multiple projectiles. This deals low Void damage, but it will apply Frailty and Shred your Armor. You see them on the ground before they detonate, so make sure to move out.

• Celestial Doom
• Harbinger's Needle

Additionally, Harbingers drop the Harbinger Eye which is needed if you want to summon Aberroth.