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Castlevania: Belmont's Curse Guide

Works of Mercy & Upgrade Points

The upgrade economy in Castlevania: Belmont's Curse: usage challenges per Arcana that convert play into skill upgrades.

Published October 15, 2026 ยท Last updated October 15, 2026

Quick Answer: Where Do Upgrade Points Come From?

Works of Mercy are the game's upgrade economy: challenges tied to each Arcana that require using that ability a set number of times under specific conditions. Completing them grants points you allocate toward upgrading the Arcana's associated skills โ€” the closest thing Belmont's Curse has to a crafting or trading system, and it pays out purely from play.

Quick Answer: Where Do Upgrade Points Come From?
InvestmentMechanicReturn
Arcana usageWorks of Mercy conditions (per ability)Upgrade points for that Arcana's skills
Boss defeatsSoul sealed into Rose's tarot cardNew Arcana (spells + special actions)
ExplorationMap gaps, secrets, doorwaysWeapon classes, Relics, flasks, mirrors
Spread usage across your whole tarot deck early โ€” Works of Mercy per-Arcana means a one-spell playstyle leaves upgrade points on the table.

The Upgrade Priority Rule

Invest points in the Arcana whose spells your build actually casts, and let exploration cover the rest. The rarest completion achievements confirm the ceiling: all arcana blessings unlocked (Pick a card, any card, 0.1%) and 100% game completion (Perfectionist Hunter, 0.1%) sit at the very top of the investment curve.