Contract From Below

Contract from Below is a passive item.

Effects

 * Doubles any Pickups earned for clearing a room.
 * Decreases the chance for room drops.
 * Neither effect applies to coins dropped in Greed Mode.

Synergies

 * Humbling Bundle: Produces quadruple results when bombs, keys, or pennies drop after clearing a room.
 * Guppy's Tail: Higher chance of double chests upon clearing a room.
 * Mitre: Higher chance to find double soul hearts upon clearing a room.
 * Diplopia: Triples item drops for each room.

Seeds
GWVY QDWF (curse room adjacent to spawn) 3VTZ 8BP2 (curse room adjacent to spawn)

Trivia

 * A reference to the card of the same name from Magic: the Gathering, a collectible card game Edmund McMillen played since his childhood.
 * Isaac's name is written at the bottom of the contract, implying that he signed the contract.

Contract From Below