Bosses

There are three Mini-Bosses in each area (nine total), one main bosses per area (three total), and one unlockable main boss (by acquiring all three extra ability masks).

Minibosses can be damaged normally, but to defeat a boss, all 3 of its Elder Shard Fragments must be destroyed to kill it.

Killing the three main bosses will unlock the way to the Final Boss, which can be reached through the Sanctuary. The boss will change depending on whether Eshe has fully Embraced, Resisted, or partially either of those.

Hanosha Ischott | Magnate of the Gong
The Magnate of the Gong can be unlocked by acquiring all of the extra ability masks, and can be found at the base of the Prayer Grounds.

Unlike the other Bosses, he has no Elder Shard Fragments, and so, he can be damaged the normal way.

The Magnate drops the Rank 4 Eradicator perk.

Lea'yi'elih & Zael'va'tielih | Legion & Salvation/Rivalry/Leonard Waters & Ishaela Bah'gor
The leader of the Valkyries and the Mother of the Eschaton, mutated beyond recognition by the failed ritual.

Ng'yehaer'llw'aetaght'litagehph | Nyarlathotep
Encountered when Eshe hasn't fully embraced. His shards are on his chest, his face and his forehead.

Ng'yehaer'llw'aetaght'litagehph & Taght'eh Shht'yng'yng'gl Tagr'laeph'ehts'liht'ehct'r'lling | Nyarlathotep & The Shining Trapezohedron
Only encountered if Eshe has fully Resisted and destroyed all Elder Shards. The Trapezohedron will reveal his true nature and reunite with his body. The Trapezohedron will act as a final Elder Shard, which if destroyed, will finally and permanently kill the Outer God and destroy the portal, trapping Eshe in the caverns. As Eshe no longer has the Trapezohedron, she has to use the upgraded Valkyrie cannon to kill it.

Eshe | Beacon of Hope
Only encountered if Eshe fully Embraced the Elder Shards' power and corrupted all of her abilities. She fights just like her, but with the uncorrupted versions of her abilities. When defeated, she will encase herself in a crystal and unleash the full wrath of her Humanity against her corrupted self.

Ht'uimg'aeng'ytagyeh | Humanity
A horryfing and gigantic mass of flesh, limbs, bones, skulls, and blue eyes. Eshe's humanity has rebelled against her, fighting with all of her strength to stop her from freeing her new master. She unleashes spiky tentacles full of eyes, and can fling herself towards Eshe, doing massive damage. The only way to damage it is by attacking the crystal that houses Eshe's clone. Once it loses three quarters of its health, her Humanity will flood the arena with poison, forcing you to hurry before it can fully do so. Once the crystal is destroyed, the Embrace Ending is triggered.