7 Seals

7 Seals is an unlockable passive item added in The Binding of Isaac: Afterbirth †.

Effects

 * Spawns a random Harbinger familiar that changes every 10 seconds. All harbingers deal contact damage to enemies and periodically spawn locusts if Isaac currently doesn't have any, though each harbinger behaves slightly differently:
 * Famine wanders around the room, leaves a trail of slowing black creep, spawns yellow locusts, and deals 0.5 contact damage per tick or 15 damage per second.
 * Pestilence wanders around the room, leaves a trail of green creep that deals 1 damage per tick or 30 damage per second, spawns green locusts, and deals 0.5 contact damage per tick or 15 damage per second.
 * War chases enemies, moves faster than the other Harbingers, spawns red locusts, and deals 1.5 contact damage per tick or 45 damage per second. However, War spawns locusts at a slower rate.
 * Death chases enemies, spawns black locusts, and deals 1.5 contact damage per tick or 45 damage per second.
 * Conquest wanders around the room, spawns two white locusts at a time, has no delay on the rate at which it can spawn locusts, and deals 0.5 contact damage per tick or 15 damage per second.

Synergies

 * : Increases Horsemens' size and doubles their contact damage. Does not affect flies spawned.
 * : Increases flies' size and doubles their damage.

Interactions

 * Fish Tail: Despite working with the locust trinkets, it does not double locusts from any of the 7 Seals Horsemen.
 * War and Death will chase after Dark Esau, unlike other familiars that target enemies. This could be detrimental if he is killed, as it will turn the player into the ghostly version of Tainted Jacob unexpectedly. Locusts, however, will never target him.

Trivia

 * 7 Seals was added in Booster Pack, after the initial release of the DLC.
 * 7 Seals is based on this Steam Workshop item by Ashkait and Scayze.
 * In the original mod, Conquest was able to horizontally charge with multiple copies of himself, just like the real boss.
 * The 7 Seals is a phrase in the Book of Revelation that refers to the 7 symbolic seals, which explains why it summons miniature Harbingers.
 * If all 5 Harbingers were defeated on a save file before Booster Pack #5 was installed, defeating any normal boss will unlock 7 Seals.
 * 7 Seals was given a new sprite in Booster Pack #4. The harbinger familiars also got new sprites, based on this Steam Workshop item by Quartz.
 * 7 Seals is one of only five items to appear in both the Angel and Devil item pools, the others being, , and.
 * Although the Headless Horseman is a horseman, it isn't represented in the 7 Seals roster.