Calamity Mod Wiki
Blood Pact
  • Blood Pact.png
Stack digit 1.png
TypeAccessoryCrafting material
TooltipDoubles your max HP
Allows you to be critically hit 25% of the time
After a critical hit, you gain various buffs for ten seconds
Any healing potions consumed during this time period heal 50% more health
Grants BuffBloody BoostBloody Boost
Buff duration10 seconds
Buff tooltipIncreased offensive and defensive stats
Healing potions grant more health
RarityRarity Level: 8
Sell 12 Gold Coin.png
Dropped by
Ravager133.33% / 50%

The Blood Pact is a Hardmode accessory that drops from the Ravager. It doubles the player's max health when equipped, but allows enemies and projectiles to land critical hits at a 25% chance, which deal 2.25 times the normal damage. After being critically hit, the player gains the Bloody Boost buff, which grants 5% damage, 20 defense, 10% damage reduction, increased immunity frames (identical to the Cross Necklace), increased life regeneration (identical to the Crimson armor), and increased healing potions' effectiveness by 50%.


Used in


  • The critical hit function of the accessory causes enemies to deal 31.25% more damage on average. When this is combined with the doubled max hp, the accessory gives roughly 52.38% extra maximum life. The 50% boosts to potion healing and life regen from Bloody Boost means that the player's overall healing is similar with this accessory than without it. Having more max hp also increases life regen due to the life regen formula.
  • The health potion increasing effect stacks additively with that of the Core of the Blood God.


  • This accessory increases the effectiveness of the Hide of Astrum Deus by increasing the damage you take on average, resulting in a longer length and duration of the True melee damage increase.