A Guide to Baldur's Gate Descent Into Avernus

Dealing With the Companion (pg 153)

It is surrounded by a 10-foot thick sheet of magical darkness. It has 9 locks, opened with the 9 rods
from Zariel’s wrecked fortress (pg 118).

Shattering the Companion: Striking the orb with the Sword of Zariel will shatter it and dispel the
darkness. This frees the planetar trapped inside.

• The sword might shatter, unless wielded by a high-ranking angel or a good-aligned cleric or
paladin level 10+.

• Tiamat can also shatter the Companion.

The Planetar’s Power: Nascius (planetar MM pg 17). Once the chains are shattered, Nascius can bring
Elturel back to the Material Plane.

Endgame in Elturel (pg 154)

As Elturel is being pulled into the Styx, Zariel’s devils fight a horde of demons (you pick - Yeenoghu or
Baphomet).

Event 1: River’s Edge: 2 horned devils (MM pg 74)

Event 2: Field of Flames: The group can stealth across the battle field with three group checks DC 15,
17, then 19. Each fail: CON sv DC 15 or 22 poison and 22 fire dmg.

• 6 hezrous (MM pg 60)
• Lucille (pit fiend MM pg 77), helm of devil command (pg 223), and battle standard of

infernal power (pg 223).
• If the group helps Lucille and kills 2 hezrous, she orders the devils not to harm the

adventurers.

Event 3: Showdown With Zariel: Zariel is fighting a balor. Zariel kills it in 4 rounds.

• If the group freed Kostchtchie (stats pg 105), he comes after Zariel to get Matalok (pg 224)
back.

• Zariel (stats pg 243)
• Balor (MM pg 55)

Appendix A Notes: Diabolical Deals

• Lemures & nupperibos can’t make deals.
• Other devils can make deals for themselves or for archdevils. Can’t normally make deals

outside their home plane unless a devil talisman or ritual circle is involved.
• Archdevils can deal freely with mortals.
Contact an Archdevil: Kill a chaotic or good-aligned creature and pray to the archdevil for one hour.
Proposal: Devil offers gift, character offers price (usually their soul). Seal the deal with a contract.
• Charisma checks don’t work on devils in these situations.
• Devils can try a Deception vs Insight to deceive characters.
• Devils try to slip in extra clauses. Investigation vs. the devil’s Deception check to detect. The

character must beat the devil’s roll, not tie it.