Calamity Mod Wiki

Eye of Magnus
  • Eye of Magnus.png
Stack digit 1.png
Knockback2 (Very Weak)
Critical chance0%
Use time20 Very Fast
TooltipFires powerful beams that reduce enemy protection
This weapon scales with all your damage stats at once
Heals mana and health on hit
Inflicts DebuffMarkedMarked
100% chance

Debuff duration8 seconds
Debuff tooltipDamage reduction reduced
RarityRarity Level: 9
Sell 16 Gold Coin.png
Projectile created
Magnus Beam
Magnus Beam

Eye of Magnus is a craftable Hardmode classless weapon that is an upgraded version of the Lunic Eye. When used it fires a fast, blue-and-white beam that homes in on enemies and will restore 25 mana and 1 HP upon contact with an enemy. The beam inflicts the Marked debuff to enemies, which lowers enemy damage reduction by 50%. Upon impact, each beam will create an explosive plume of blue-and-white particles which can deal additional damage. This weapon does not consume any ammo or mana.

The Eye of Magnus cannot be reforged, and therefore cannot have modifiers.



Crafting Station
Ancient ManipulatorAncient Manipulator
Lunic EyeLunic Eye1
Nebula FragmentNebula Fragment10
Eye of MagnusEye of Magnus1


  • This weapon does not have any critical strike chance and cannot gain any from Accessories, Modifiers, Buffs and Armor bonuses.
  • As this weapon does not count as a specific weapon type, it does not provoke the penalty on minions' damage when holding a non-summoner weapon, making it an indispensable asset for summon-based characters.
  • The damage multiplication is equal to the sum of all the damage multiplication across each of the 5 classes (Melee, Ranged, Mage, Summoner, Rogue).
    • e.g. If the player has +10% melee damage, +30% ranged damage and +5% rogue damage, the Lunic Eye will deal 45% more damage.
  • The additional hits from the impact explosion will not replenish HP or mana, only the initial enemy hit will.