BC4 Passover is an unlockable challenge in Benighted Soul, a mod for The Binding of Isaac.
This challenge is played on Hard mode.

Transcendence
Paschal Candle
Akeldama
Key Piece 1
Key Piece 2
Polydactyly
Falsehood of Judas (x2)
The Gospel Of Judas

Note: this list does not include characters' default starting items.

Forced Curse: Curse of the Moving!

Blind Mode.

Gains 2 Falsehood of Judas in a new level.

Based on the rules set in the .xml file, the following special rooms are disabled during this challenge:

The following is unlocked for completing the BC4 Passover challenge: Benighted Judas starts with Chaotic Belief.

Enemies around the book from The Gospel Of Judas and enemies hit by Benighted Judas' dash will get weakeness

Unlock Benighted Judas.

• Download Benighted Soul from the Steam Workshop.