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Attack on Avernus: The Wrath of Tiamat!
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Attack on Avernus: The Wrath of Tiamat!


"This is combat tenfold... A high level adventure on steroids."
-Rich the Lich, reviewer

"The adventurers must negotiate through 9 layers in The Adamant Hourglass dodging meteor swarms, dragons, devils, and the effects of The River Styx."
-Nonzerosumgames, reviewer

Only you can crush the legions of Hell!

High level heroes race against time as Tiamat's forces rally for all out war!

Soar into battle on the back of powerful, winged mounts as you enter the Ebon Corridor, a demiplane unlike any other!

Designed for characters of levels 17-20, this flexible adventure provides a gauntlet of extreme challenge for the world’s most powerful heroes.

DMs can seamlessly switch between two challenge modes included for every encounter: Standard mode and ultra-challenging Infernal mode!

Special encounter tables are included for 20th level capstone play in both modes!

Includes an outstanding party of 20th level pregenerated characters ready to pick-up and play!

Attack on Avernus: The Wrath of Tiamat! Is perfect as:

-An action-packed addition to any high-level game
-A sequel to Descent into Avernus
-A thrilling return to the Tyranny of Dragons
-A one-shot, level 20, capstone blast!

Attack on Avernus: The Wrath of Tiamat! has all the action you and your players crave!

Every Dungeon Master should own: Attack on Avernus: The Wrath of Tiamat!

Follow the author on Twitter @NimbusOf

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Reviews (7)
Discussions (3)
Customer avatar
Joey V January 11, 2020 7:10 am UTC
So my question is that it says works for 17th-20th level but what level is it designed for? Like what level should my characters be if I don’t want to modify the adventure at all.
Customer avatar
Blaise W January 11, 2020 1:41 pm UTC
Hi Joey,

To run unmodified you have two options:
1) The module was written for an average party level of 18. There are instructions on how to modify for higher or lower average party levels, but if you want to run unmodified: level is the way to go 18.
2) As a "one off" you could run it at level 20. There are 7 pre-generated level 20 characters. Wherever there's a combat table for level 18, there is a level 20 version as well, so you as the DM can have quick references for both on the same page.

Hope this helps!

Customer avatar
Joey V January 11, 2020 7:47 pm UTC
Thanks I really like the sound of this adventure and I plan on running the decent into avernus but I’m going to start at 3rd level and add a bunch of stuff. I was using milestone leveling so I’m looking as I build for the final levels so I guess 18 will be the target.
Customer avatar
Bryan B September 18, 2019 2:23 am UTC
You misspelled "gauntlet."
Customer avatar
Blaise W September 18, 2019 2:32 am UTC
Got it! Thanks.
Customer avatar
Bill O September 17, 2019 6:17 pm UTC
I was working on a post Rise of Tiamat adventure to bring my party to 20th. Does this adventure end with the party facing Tiamat in her lair?
Customer avatar
Blaise W September 17, 2019 7:47 pm UTC
Hi Bill,

As written, this adventure has the Player Characters facing a powerful ally of Tiamat.
There are ways to adapt the story however. SPOILERS below:

If the PCs wait too long, this ally transforms into a Blue Dragon version of Tiamat that has most of Tiamat's powers and all legendary actions.
Note: if the Dungeon Master wanted to replace the current antagonist with Tiamat, this could be easily done. The DM would use Tiamat's stats from another source (or use the Blue Dragon Tiamat stats that are rather similar). AND allow the Players a long rest prior to the final battle.

This adventure would only have the Player Characters facing the Blue Dragon version of Tiamat if they had taken a long rest.

With these tweaks, the adventure would certainly work.
Hope this helps!
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File Last Updated:
October 14, 2019
This title was added to our catalog on September 16, 2019.