The Relic

The Relic is an unlockable passive item.

Effect

 * Spawns a small cross that follows Isaac and drops a soul heart every X rooms, where X rotates between:
 * 3, 4, 5, 4, 4, 1, 4, 4, 5, 4, 5
 * After the sequence is finished, it goes back to position 2 (4, 5, 4, etc.).
 * This is based on the formula: floor(rooms / 1.11) & 3 = 2

Trivia

 * A relic usually consists of remains of a saint or holy person, such as the tooth of Mary Magdalene.

Seeds
93ED 1R1B (Treasure room adjacent to spawn) FE88 CQL9 (Treasure room adjacent to spawn)