Runic Lens

Seekers of the Storm - DLC Content Runic Lens is part of the Seekers of the Storm DLC. It is only available if the DLC is enabled when starting a run. Click for more info.Runic Lens
Chance to call down a meteor. Damage and chance are increased with higher damage hits.
3% chance on hit to call a meteor strike, dealing 2000% base damage. Every 100% attack damage dealt increase the activation chance by 3% (+3% per stack) and damage by 150% (+50% per stack).
Rarity	Legendary
Category	Damage HalcyoniteShrine
Stats
Stat	Value	Stack	Add
Chance	3%	Linear	+3%
Damage	150%	Linear	+50%
Internal
Name	MeteorAttackOnHighDamage

Runic Lens is an Item in Risk of Rain 2, introduced in the Seekers of the Storm expansion.

Upon hitting an enemy there is a 3% chance to call a meteor strike, dealing 2000% base damage. Every 100% attack damage dealt increase the activation chance by 3% (+3% per stack) and damage by 150% (+50% per stack). The meteor deals damage after 1 second with a 0.5 proc coefficient in a 10m radius with no damage falloff.

Notes

• There can only be only one meteor at a time by a certain character.
• The chance on hit is capped at 75% (before any luck calculations). Similarly, the damage is capped at 7500% base damage. These two caps do not occur at the same point, with the latter requiring stronger attacks to be reached.
  • For both of these values maxed the expected damage is 5625% base damage, which for 1 Runic Lens stack occurs for an attack with at least 3700% base damage, e.g., the blast from Preon Accumulator140sPreon Accumulator
    Fire a ball of energy that electrocutes nearby enemies before detonating.
    Fires preon tendrils, zapping enemies within 35m for up to 600% damage/second. On contact, detonate in an enormous 20m explosion for 4000% damage..
• The proc chance is affected by the proc coefficient of the attack that calls the meteor.
  • This means Survivors of the Void - DLC Content
    Railgunner is part of the Survivors of the Void DLC. It is only available if the DLC is enabled when starting a run.
    Click for more info. Railgunner'sSurvivors of the Void - DLC Content
    This content is part of the Survivors of the Void DLC. It is only available if the DLC is enabled when starting a run.
    Click for more info.RailgunnerThe Railgunner is a long-range, single target survivor that can instantly kill any high priority target - and from any range.
    Class: Ranged
    HP: 110 (+33 per level)
    Damage: 12 (+2.4 per level)
    Armor: 0
    Umbra: Forgotten Nomad Supercharged RailgunSupercharged Railgun (Primary)Launch a super-charged projectile for 4000% damage. Critical Strike damage is multiplied by 1.5.
    Survivor: Railgunner and Seekers of the Storm - DLC Content
    False Son is part of the Seekers of the Storm DLC. It is only available if the DLC is enabled when starting a run.
    Click for more info. False Son'sSeekers of the Storm - DLC Content
    This content is part of the Seekers of the Storm DLC. It is only available if the DLC is enabled when starting a run.
    Click for more info.False SonThe False Son is a slow but stalwart close-range warrior. With extreme health and defense, False Son can weather any storm. Use False Son's durability to stay in the fray and capitalize on his slow but deadly skills.
    Class: Melee
    HP: 180 (+54 per level)
    Damage: 13 (+2 per level)
    Armor: 20
    Umbra: The Shattered Heir fully charged alternative slam can guarantee to proc this item due to their 3.0 proc coefficient.
• While the blast has a large radius, it is possible to miss flying enemies if they are too high up in the air since the meteor always targets the ground underneath the target.
• While the proc chain that procs the meteor cannot trigger it again, the meteor itself does not carry this information. This makes it possible for the meteor and AtG Missile Mk. 1AtG Missile Mk. 1
  Chance to fire a missile.
  10% chance to fire a missile that deals 300% (+300% per stack) TOTAL damage., for example, to end up in a feedback loop if the AtG lands late enough for the meteor to be ready for another strike. In practice this is very unlikely to occur due to the AtG's low proc coefficient, coupled with the meteor's 0.5 proc coefficient.
• The data about the meteor's target, damage, and impending impact are tied to the attacker's body. If this character's body is destroyed before the meteor lands, there will be no blast. The fire ring surrounding the target, implying the meteor is coming, and the eventual explosion is just an independent visual effect which does not deal any damage in and of itself.
  • Body destruction in this case is quite literal. When a character is killed, the body object persists for a little longer to perform its death animation, during which time the meteor can still land successfully. However, respawning destroys the old body and creates a new one.
  • This can also be observed if the player transforms into the HereticHereticThe Heretic is a powerful character who can only be accessed through extraordinary means.
    Class: Ranged
    HP: 440 (+132 per level)
    Damage: 18 (+3.6 per level)
    Armor: 0
    Umbra: Unorthodoxy Risen while the meteor has been called.

Math

The definition of Overspill is

$overspill=\lfloor totalDamage/baseDamage\rfloor$

This is used to calculate the chance of proccing the item

$chance=min(3+3\times stacks\times overspill,75)$

When the roll is successfull, the meteor summoned deals damage equal to

$damage=min(20+(1+0.5\times stacks)\times overspill,75)$

This value is calculated in terms of base damage multiples, i.e., at most it will do 7500% of base damage.

The average damage done by this attack is simply $chance\times damage$.

The following table shows how much damage the meteor will deal on average for various Overspill and item stack values. This assumes no luck and a proc coefficient of 1.0. To see instead how much an instance of damage a meteor will deal whenever procced, one has to only take into account the damage formula from above.

Overspill	1 Stack	2 Stacks	3 Stacks
0%	60%	60%	60%
100%	129%	198%	270%
200%	207%	360%	525%
300%	294%	546%	825%
400%	390%	756%	1170%
500%	495%	990%	1560%
600%	609%	1248%	1995%
700%	732%	1530%	2475%
800%	864%	1836%	3000%
900%	1005%	2166%	3187.5%
1000%	1155%	2520%	3375%
1500%	2040%	3750%	4312.5%
3000%	4875%	5625%	5625%
8000%	5625%	5625%	5625%

Tips

• Equipment such as Royal Capacitor20sRoyal Capacitor
  Call down a lightning strike on a targeted monster.
  Call down a lightning strike on a targeted monster, dealing 3000% damage and stunning nearby monsters. and Preon Accumulator140sPreon Accumulator
  Fire a ball of energy that electrocutes nearby enemies before detonating.
  Fires preon tendrils, zapping enemies within 35m for up to 600% damage/second. On contact, detonate in an enormous 20m explosion for 4000% damage. have high damage coefficients, making it likely that Runic Lens is procced afterwards.
• Items and skills that group up enemies, e.g., Sentient Meat HookSentient Meat Hook
  Chance to hook all nearby enemies.
  20% (+20% per stack) chance on hit to fire homing hooks at up to 10 (+5 per stack) enemies for 100% TOTAL damage., Primordial Cube60sPrimordial Cube
  Fire a black hole that draws enemies in.
  Fire a black hole that draws enemies within 30m into its center. Lasts 10 seconds, and Beacon: ShockingBeacon: Shocking (Special)Periodically Shock all nearby enemies, immobilizing them.
  Survivor: Captain, can be quite effective due to the meteor's blast radius.
• Seekers of the Storm - DLC Content
  Breaching Fin is part of the Seekers of the Storm DLC. It is only available if the DLC is enabled when starting a run.
  Click for more info. Breaching FinSeekers of the Storm - DLC Content
  This content is part of the Seekers of the Storm DLC. It is only available if the DLC is enabled when starting a run.
  Click for more info.Breaching Fin
  Grounded enemies hit with any skill are launched and take bonus damage.
  Grounded enemies hit with any skill are launched and stunned. Enemies hit while airborne are launched again up to 2 times (+1 per stack). Launched enemies take increased damage by 20% from all sources per launch. Recharges after 10s. can push enemies away from the meteor's landing spot, making this item less effective.

Lore

Shipping details
Order: "Insurance Nightmare"
Estimated Delivery: 06/28/2027
Shipping method: High Priority

Sent to:
Merchants Guild
Mercury

Order details:
Appraisal complete.
Full report and certificate of Kosthenticity attached.

If its user starts a fight, this wretched thing will certainly finish it.

Recommendations:

Don’t touch the pale yellow runes, ever, for any reason.
Don’t sleep near it.
Don’t make eye contact with it.
Don’t use it indoors.

I’ve included the bill for my roof.

- Kosta of Crumbling Tower

Version History

Patch v1.3.6

• Reworked Runic Lens
  • Old Functionality - Overspill. 5% chance (+1% per 100% done on initial hit plus 1% per item stack) on hit to summon a meteor on the target, dealing 2000% damage.
  • New Functionality - 3% chance on hit to call a meteor strike, dealing 2000% base damage. Every 100% attack damage dealt increases the activation chance by 3% (+3% per stack) and damage by 150% (+50% per stack.)

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Seekers of the Storm

• Added New Item: Runic Lens