Risk of Rain 2 Wiki
Mercurial Rachis
Randomly create a Ward of Power. ALL characters deal bonus damage while in the Ward.
Creates a Ward of Power in a random location nearby that buffs both enemies and allies within 16m (+50% per stack), causing them to deal +50% damage.
Rarity Lunar
Category Utility
Stats
Stat Value Stack Add
Range 16m Exponential +50%
Internal
Name RandomDamageZone

The Mercurial Rachis is a lunar item in Risk of Rain 2, added in Content Update 5.

The item places a ward in a random location within 50m the holder that gives the Power BuffPower Buff (Buff)
Gain increased damage.Gain +50% damage.
status to any character within 16m (+50% per stack), increasing their damage by 50%. The character is powered up regardless of whether they are an ally or enemy. The ward lasts for 24 seconds and will take another second to replace itself near the holder.

Notes[]

  • If there is no suitable place for a ward to appear within 50m, nothing will happen, but as soon as a spawning position is found, a ward will appear there.
  • The radius is determined by this formula 16 ⋅ 1.5 ^ (X - 1) where X is the number of stacks you have. Once you have 4 stacks, the radius will be 54m which is large enough to always contain the player's position when it spawns, no matter how far away it spawns
  • The Power Buff status only persists as long as the character stays in the ward's radius. It expires almost immediately when the character leaves the radius, or if the ward expires.
  • The ward has a radius indicating its area of effect, similar to the Focus CrystalFocus Crystal
    Deal bonus damage to nearby enemies.

    Increase damage to enemies within 13m by 20% (+20% per stack).
    , but its actual area of effect is slightly smaller than the indicator.
  • While the ward's placement is somewhat random, EngineerEngineerThe Engineer is a unique class that requires planning and positioning to be successful.
    Class: Ranged
    HP: 130 (+39 per level)
    Damage: 14 (+2.8 per level)
    Armor: 0
    Umbra: Fortification Expert
    can utilize this item very well if his TR12 Gauss Auto-TurretsTR12 Gauss Auto-Turret (Special)Place a turret that inherits all your items. Fires a cannon for 100% damage. Can place up to 2.
    Survivor: Engineer
    are in the ward's radius.
    • Engineer's turrets will also place nearby wards.
  • Be aware of how large the ward's radius becomes when stacking this item. While increasing the radius gives the player more freedom to move around within, excessive stacks will make it much more likely for enemies to become powered up as well.
    • Unlike WarbannerWarbanner
      Drop a Warbanner on level up or starting the Teleporter event. Grants allies attack and movement speed.

      On level up or starting the Teleporter event, drop a banner that strengthens all allies within 16m (+8m per stack). Raise attack and movement speed by 30%.
      , the Radius increases by 50% of the previous stacks radius, making each stack increase the radius further than the last.

Lore[]

“The original information super-highway: the spine. A strait-laced path from the body to the brain, it is responsible for ensuring the survival of all life. However, its limitations involve being localized to its parent body. What if - just like the development of the inter-computer wireless network - one’s nervous system could communicate with another? What if the spine traced a path not just from body to mind, but a path that intersects between other bodies and minds?”

- Notes of Job Michaels, Serial Killer and Mad Scientist

Version History[]

Anniversary Update
  • Major Content
    • Added New Lore Entry: Mercurial Rachis
Early Access Content Update 5
  • Major Content
    • New Lunar Item: Mercurial Rachis

Gallery[]