Guild Wars 2: Heart of Thorns content

Well of Calamity

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Well of Calamity.png

Well of Calamity

Not available underwater  Ground-targeted  
Mesmer icon small.png Mesmer (skill list)
Chronomancer icon small.png Chronomancer
Training cost
15 Hero points
Game link
0.75¾ Activation time  20 Recharge time  
Well of Calamity

Well. Create a well that rends time, damaging, weakening, and crippling foes in the area. When the final pulse of Well of Calamity triggers, it deals massive damage to foes in the area.

Damage.png Pulse Damage: 346 (1.3)?
Damage.png Pulse Damage: 266 (1.0)?
Damage.png Final Damage: 558 (2.1)?
Damage.png Final Damage: 798 (3.0)?
Crippled.png Cripple (2s): -50% Movement Speed
Weakness.png Weakness (2s): -50% Endurance Regeneration, +50% Fumble (Unrestricted)
Number of targets.png Number of Targets: 5
Miscellaneous effect.png Pulses: 3
Duration.png Duration: 3 seconds
Radius.png Radius: 240
Combo.png Combo Field: Ethereal
Range.png Range: 900

— In-game description

Related traits[edit]

Chronomancer Chronomancer


  • Despite the skill description, this Well pulses 4 times, with the first pulse applying on Well placement.
    • All 4 pulses apply the listed conditions.
    • The first 3 pulses each deal the listed pulse damage
    • The last pulse applies the final damage (and activates All's Well That Ends Well if you have it traited).

Version history[edit]

For a detailed skill history, see here.

Patch Changes
May 02, 2023
  • Increased pulse power coefficient from 1.0 to 1.3 in PvE only. Reduced final power coefficient from 3.0 to 2.1 in PvE only.
November 29, 2022
  • Increased power coefficient of initial strikes from 0.5 to 1.0 in PvE only.
February 22, 2017
  • Fixed a bug that caused wells to display their effects incorrectly while under the effects of quickness or slow.
October 18, 2016
  • Fixed a bug that allowed this ability to apply conditions through all forms of defense.
May 17, 2016
  • The visual effects of this skill has been restored to their original state for the player. The previous effects are now used as the lower level-of-detail versions.
November 17, 2015
  • Reduced the visual noise on the effects associated with this skill.
October 23, 2015 Heart of Thorns release:
  • Well of Calamity has been added to the game.


  • The skill icon appears to depict a moon (or a similar natural satellite) crashing into a planet.
  • When using the skill, an image of a Death's-head hawkmoth appears on the ground.
  • The wording of the description of this skill is a subtle reference to BlazBlue: Calamity Trigger. Several other Chronomancer abilities reference this series as well.
  • Well of Calamity's most prominent sound effect is its ticking sound, which plays strongest on a pulse. The note on the final pulse whirls up to match the graphic of flying crystal.