Tul, Creeping Avalanche Boss Guide


Tul, is - next to Esh, Xoph, Uul-Netol and Chayula - one of the five Breachlords introduced in Patch 2.5.0 Breach League. In order to fight her, you have to open an Tul's Breachstone (or an empowered variant) in the Map device. This opens portals to the Tul's Domain, the residence of Tul, Creeping Avalanche. She also has a chance to spawn outside of her Domain during a Map with the Breach League Mechanic active, if the Breach belongs to her.

Breachlord Guides:

Loot Table

In addition to regular loot, Tul, Creeping Avalanche has the following boss-specific drops:

  • The Halcyon
  • The Snowblind Grace
  • Tulborn
  • Blessing of Tul
  • The Escape
  • Maven's Invitation: The Hidden

With Blessing of Tul you can upgrade the boss specific unique items to:

  • The Halcyon + Blessing of Tul = The Pandemonius
  • The Snowblind Grace + Blessing of Tul = The Perfect Form
  • Tulborn + Blessing of Tul = Tulfall

Upgrading Breachstones

Tul's Breachstone - Upgrade Path

The Blessing of Tul lets you upgrade Tul's Breachstone to a certain extent:

  • Tul's Breachstone + Blessing of Tul = Tul's Charged Breachstone
  • Tul's Charged Breachstone + Blessing of Tul = Tul's Enriched Breachstone
  • Tul's Enriched Breachstone + Blessing of Tul = Tul's Pure Breachstone

There is also an Tul's Flawless Breachstone but in order to obtain it, you have to defeat Esh, Xoph, Tul and Uul-Netol in the Maven's Invitation: The Hidden. All 4 Flawless Breachstones have a chance to drop.

The Chayula's Flawless Breachstone can only be obtained in the Maven's Invitation: The Feared, which is also the hardest Invitation to complete.

If you want to learn more about the Breach League mechanic, farming strategies as well as Items and modifiers, make sure to check out our Breach League Guide!

Skills Breakdown

Cold Barrage

Tul charges up and channels a lethal cone of Cold Damage projectiles. While channelling, Tul is locked in place,
so you can avoid the ability by running a circle to be behind her. These projectiles travel a very long distance,
so you cannot simply outrun them.


Tul strikes with his weapon, performing the Frost Blades on you. This ability has increased attack range and fires additional icy projectiles upon impact. This ability deals both Physical and Cold Damage.

Snow Cloak

Tul summons a Cold Snap-like Snow Cloak that deals Cold Damage over Time and creates chilled ground.
The base duration of this ability is 30 seconds. While Tul stands within the area she gets 25% reduced
damage taken and 20% chance to dodge attack and spell hits.

Ice Totems

Tul summons a pair of Ice Totems. These Totems fire icy projectiles in a straight line to the partner-totem.
If one of the two dies, the other one dies as well. Make sure to kill these totems immediately, because Tul
can summon multiple totems that will flood the entire arena with projectiles.

Breach Monsters

Tul summons a Breach onto your position. If you walk into it, it starts releasing Breach Monsters for a
couple of seconds. You want to kill them quickly to restore Flask Charges and keep track of
Tul's deadly abilities.

Boss Mechanics

When you open an Tul's Breachstone (or an empowered variant) in your Map Device, portals to the Tul's Domain appear. Once entered, you find yourself in an empty area with a Breach next to the entrance. In order to start the encounter, you have to walk into the Breach Hand to trigger it. A Timer starts, the Breach opens up and expands, spawning countless Breach Monsters in the process. Every Monster you slay within the Breach adds towards the timer. If you successfully keep up, a Boss portal spawns at the end of the area.

Tul's Domain - Breach Hand

Once you enter the boss arena, you find Tul, Creeping Avalanche, in the north. Engage the boss but beware of her abilities.

Make sure to check out the Skills Breakdown above to learn more about each of the abilities.


Tul is part of the Maven's Invitation: The Hidden. In order to get her witnessed, you have to open the Breachstone while the Maven is active on your Map Device. Every variant of the Breachstone counts.

Every item of each specific Boss can drop once you completed the Invitation, as well as Crescent Splinter for the The Maven's Writ.

If you want to learn more about the Maven's Invitations, make sure to check out our Maven's Invitations Explained Guide!

Map Device - Maven active

Additional Information

The Atlas Passive Tree does not provide any Breachstone enhancing Keystones, Notables or Nodes due to Breachstones not being part of the Atlas. The Tul's Domain is neither a Map or endgame Boss that can be modified or empowered outside of Blessings.

You can still upgrade up your Tul's Breachstone with Blessing of Tul to further increase their rewards and the difficulty.

  • Tul's Breachstone - Monster Level: 70
  • Tul's Charged Breachstone - Monster Level: 74
  • Tul's Enriched Breachstone - Monster Level: 79
  • Tul's Pure Breachstone - Monster Level: 81
  • Tul's Flawless Breachstone - Monster Level: 84

Tips & Tricks

  • Use Portal Scrolls or aPortal Gem to generate save points. Remember, if you die, the Breach still expands, making it very hard to complete.
  • Keep moving! The majority of Tul's abilities can be outmaneuvered.
  • Occasionally, Tul starts to charge up her Cold Barrage. Run behind her to avoid the projectiles.
  • Kill the Breach Monsters that spawn to restore Flask Charges.
  • Kill the Icy Totems as soon as possible to avoid flooding the arena with projectiles.


  • Tul is one of the 5 Breachlords and part of the Maven's Invitation: The Hidden.
  • She can be encountered in the Tul's Breachstone or within a Map, if the Breach League Mechanic is active and the Breach you find belongs to her.
  • After triggering the Breach in the Tul's Domain, kill as many monsters as fast as possible to keep up with the timer.
  • Once you reach the end, a boss portal spawns that leads you to Tul, Creeping Avalanche.
  • Tul's Breachstone can be upgraded with Blessing of Tul to further increase their rewards and the difficulty.

Good Luck, Exile!


Written by mbXtreme
Reviewed by Palsteron


Jul 18th 2022
Guide created.