The Pact

A very rare Demonic set weapon with a genuine cost-benefit trade-off: permanently sacrifice 1 Constitution to gain +1 Strength, +2 Dexterity, and +2 Speed for the rest of the current battle. The permanent CON loss stings, but the burst of offensive stats can make the difference in a critical fight. Best used when the battle ahead demands it and you can absorb the HP cap reduction. Noted as potentially unused in the current game version.

The CON reduction is permanent — it persists after the fight, lowering maximum HP for the rest of the run. The combat stats (+1 STR, +2 DEX, +2 SPD) expire when the battle ends, so the pact is always a net negative in the long term. This makes The Pact a high-risk tool: you permanently weaken the character's durability for a temporary offensive spike.

The Pact is best justified on a character who already has surplus CON and can afford to lose 1 point without dropping into dangerous HP territory. It shines as a desperation tool on a final boss fight where the permanent downside no longer matters. On Demonic set builds where STR and DEX are primary damage stats, the battle buffs can enable a burst high enough to end an otherwise unwinnable encounter. Avoid using it early in a run where the CON loss compounds over many future fights.