Curse of the Eternal Night! is a curse in Reverie: Make Good Omissions, a mod for The Binding of Isaac.

Isaac's speed, fire rate, range, and luck decrease by 1% per second.
Cannot reduce speed below 0.85.
Cannot reduce fire rate below 2.04.
Cannot reduce range below 4.5.

Enemies cannot take more than DamageStat damage per hit, and this cap decreases by 1% per second.
Cannot reduce damage to enemies below 2.62.

• Download Reverie: Make Good Omissions from the Steam Workshop.