Calamity Mod Wiki
Mana Polarizer
  • Mana Polarizer.png
Stack digit 1.png
TooltipIncreases max mana by 50 and magic damage by 6%
Life regen lowered by 3 if mana is above 50% of its maximum
Grants spectre healing, the amount healed scales with your mana
The healing only works while holding a magic weapon
The more mana you have, the more you heal
RarityRarity Level: 4
Sell 2 Gold Coin.png 40 Silver Coin.png
Dropped by
The Slime God1100%

The Mana Polarizer is a Pre-Hardmode accessory dropped by the Slime God. It increases the player's maximum mana by 50 and magic damage by 6%. Additionally, striking an enemy with a magic-type projectile will cause a short-lasting heal orb to spawn from an enemy. Upon contact with the player, the orb heals for 20% of the projectile's damage multiplied by the ratio of the player's current mana over their maximum mana. This healing will only work if the user is holding a magic weapon. The more the player is healed, the less often healing orbs are spawned from an enemy. However, the Mana Polarizer will reduce the player's life regeneration by 3 while its wearer is above 50% mana.


  • The health drain effect directly subtracts from any life regeneration the player has. If the player naturally regenerates less than 1.5 health per second, the Mana Polarizer will cause continuous damage over time while its user is above 50% mana.
  • The health drain of the Mana Polarizer is considered a damaging debuff, which can activate the defensive bonuses of the Crown Jewel.


  • If the player is killed by the health drain, the death message will read "<PlayerName>'s life was completely converted into mana."
  • This item was previously known as the "Mana Overloader".