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Schoolbag

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Item icon
Item altar
 
 
 
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Character appearance
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Shop Shop|- Greed mode only Shop Shop
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(page 5, column 9, row 3)
 
Schoolbag Enter every shop from Chapter 1 through Chapter 3 in one runSchoolbagSchoolbag
Added in Afterbirth †

Schoolbag is an unlockable passive item added in Booster Pack #4.

Effects[edit | edit source]

  • Allows Isaac to hold two active items.
    • Swap between active items by pressing the Control key (PC), R2 (PlayStation), RT (Xbox), or ZR (Nintendo).

Notes[edit | edit source]

  • The button to swap between active items is the same button used to swap between card and pills.
  • Items that grant temporary effects for the room such as The Nail The NailThe Nail Icon.png6 roomsAdds one soul heart and allows the breaking of rocks and damaging enemies by simply walking over them. Increases damage and decreases speed. All effects except for the Soul Heart wear off upon leaving the room. may deactivate if switched with an item in the secondary slot.
  • The ? Card ? CardQ Card Icon.pngWhen used, copies the effect of Isaac's currently held activated collectible item. does not activate both active items.
  • While holding an active item that grants passive bonuses in the secondary slot, swapping the main slot item with a pedestal item may remove the bonuses. If this happens, you can swap the bonus-granting item to the pedestal and pick it up again to regain them.
  • The swap key must be pressed twice if playing as The Forgotten.
  • This item cannot be unlocked if the player encounters more than one Curse of the Labyrinth in Chapters 1-3, except by chance of finding Silver Dollar, Forget Me Now, or a 5-pip Dice Room.

Synergies[edit | edit source]

  • Guppy's Paw Guppy's PawGuppy's Paw Icon.pngUnlimitedRemoves one red heart container in exchange for gaining 3 Soul Hearts. + Converter ConverterConverter Icon.pngUnlimitedWhen used, converts two soul hearts into a heart container.: Grants infinite health, as a red heart can be converted into 3 soul hearts, and 2 soul hearts can be converted into a red heart.
  • Kamikaze! Kamikaze!Kamikaze! Icon.pngUnlimitedCreates an explosion in the same area as Isaac, dealing half a heart of damage to him and also damaging all enemies caught in the blast radius.: The cooldown before the player can use Kamikaze! again is eliminated when switching items. Depending on how fast the player can push the buttons, Kamikaze! can be used multiple times during Isaac's invincibility frames.
  • Mom's Box Mom's BoxMom's Box Icon.png4 roomsWhen used, Mom's Box will drop a random trinket on the ground. While held, increases luck by 1 and doubles the effects of trinkets.: If a trinket is picked up while Mom's Box is in the active slot, swapping between active items will not remove the doubled trinket effect.
  • A Pony A PonyA Pony Icon.png4 roomsPassively grants flight and increased speed. Upon use, Isaac charges in the direction the pony is facing, becoming invulnerable during the charge and damaging enemies. / White Pony White PonyWhite Pony Icon.png6 roomsPassively grants flight and increased speed. Upon use, Isaac charges in the direction the pony is facing, becoming invulnerable during the charge and damaging enemies while also casting the effect of Crack the Sky.: Will continue to grant flight and the speed bonus while held in the secondary slot.
  • Glowing Hour Glass Glowing Hour GlassGlowing Hour Glass Icon.png2 roomsWhen used, this item will rewind time, put Isaac back in the previous room, and undo anything that happened in the current room. Any health, pickups, or items gained or lost will be reset back to the previous state. + Crooked Penny Crooked PennyCrooked Penny Icon.png4 roomsSpawns a penny and has a 50% chance to double all items and pickups in the room. If the effect fails, the items and pickups disappear.: Glowing Hour Glass can rewind Crooked Penny's failures, and the failed duplication attempt can be expended somewhere else instead. This allows Crooked Penny to function as an infinite-use Diplopia.
  • Dull Razor Dull RazorDull Razor Icon.png2 roomsHurts Isaac without depleting health, activating any items that trigger upon taking damage. + Habit HabitHabit Icon.pngWhen Isaac is hit, 1 point of an item's charge is filled.: Using Dull Razor adds a charge to the item in the secondary slot (but not itself).
  • Single-use items: Can be held on to for later use.
    • Diplopia DiplopiaDiplopia Icon.pngOne time useDuplicates all pickups and item pedestals in the room.: Single-use items can be doubled and then used twice.

Interactions[edit | edit source]

  • My Little Unicorn My Little UnicornMy Little Unicorn Icon.png6 roomsUpon use, grants invulnerability and increased speed for five seconds, removing the ability to shoot tears and replacing it with the ability to deal contact damage to enemies. / The Gamekid The GamekidThe Gamekid Icon.png6 roomsUpon use, turns the character into a into a Pac-Man-like creature for 5 seconds, granting invulnerability, inflicting fear on all enemies, and replenishing half a red heart container for every two enemies killed. / Unicorn Stump Unicorn StumpUnicorn Stump Icon.png1 roomsUpon use, grants invulnerability and increased speed for five seconds, but removes the ability to shoot tears.: Switching items breaks the invincibility effect. This does not apply to other sources of invincibility.

In-game Footage[edit | edit source]

Trivia[edit | edit source]

Bugs[edit | edit source]

Bug Bug! Removing Schoolbag by means of D100 D100D100 Icon.png6 roomsUpon use, rerolls all passive items on Isaac like the D4, every pedestal item in the room like The D6, and every pickup like the D20., D4 D4D4 Icon.png6 roomsRerolls all of Isaac's items., or through being granted the effect from Metronome MetronomeMetronome Icon.png2 roomsGrants a random item effect for the current room. and using it again, does not cause the second active item to be removed or dropped into a pedestal; Isaac will still be able to hold his second active item until he picks up another active item, which will then remove the second slot and delete the active item contained.
Bug Bug! Re-rolling by Dice Room removes the primary active item but the second one remains unchanged, allowing another active item to be picked up. Picking up another active item after this will result in the previous bug; the second slot is removed and the active item contained is deleted.
Bug Bug! As of V1.06.J168, the item inside the Schoolbag has a minor graphical glitch when picking up a third active item. For a single frame as the pickup animation ends, the item's "charged glow" status and number of bars will match the item that Isaac is picking up.


Moving Box Icon.png Booster Packs Moving Box Icon.png
#1
  • Angry FlyAngry FlySpawns a fly familiar that orbits around a random enemy and deals 5 damage per tick to enemies it comes in contact with.
  • Black HoleBlack HoleThrows a black hole on the ground which sucks in and damages enemies.
  • BozoBozoIncreases damage by a flat 0.1 and grants a soul heart. Enemies can randomly become briefly charmed or feared. Taking damage has a chance to spawn a rainbow poop.
  • Broken ModemBroken ModemEnemies, enemy shots, tears, and pickups will briefly freeze in place at random intervals.
  • Mystery GiftMystery GiftUpon use, spawns a random item from the current room's item pool, with a chance to spawn A Lump of Coal or The Poop instead.
  • SprinklerSprinklerUpon use, spawns a sprinkler that rotates and fires tears.
  • Fast BombsFast BombsGrants 7 bombs and allows bombs to be placed rapidly.
  • Buddy in a BoxBuddy in a BoxGrants a familiar with a random tear effect. The familiar is randomized at the start of each floor.
  • Lil DeliriumLil DeliriumGrants a familiar that transforms into another random familiar every 10 seconds.
  • HairpinHairpinFully recharges Isaac's active item upon entering a boss fight.
  • Wooden CrossWooden CrossGrants a Holy Mantle shield upon entering a new floor, which protects against one hit of damage.
  • Butter!Butter!Using an active item will drop it onto a pedestal on the ground. Taking damage may result in dropping a passive item.
  • Huge GrowthHuge GrowthMakes Isaac large for the current room, increasing his range and damage.
  • Ancient RecallAncient RecallSpawns 3 random cards.
  • Era WalkEra WalkFor the current room, enemies are slowed, Isaac's speed is increased, and his shot speed is decreased.
#2
  • Jumper CablesJumper CablesGrants an active item charge every 15 enemies killed.
  • CouponCouponUpon use, makes a random item from a shop, devil deal, or black market free.
  • TelekinesisTelekinesisUpon use, for the next two seconds, any enemy shots that come near Isaac are held in place. After the charge is depleted, they are fired back as tears.
  • Moving BoxMoving BoxIf the box is empty, picks up all items and pickups in a room and stores them. If the box is not empty, places all stored items and pickups in the current room.
  • Technology ZeroTechnology ZeroConnects Isaac's tears with electricity that can damage enemies.
  • LeprosyLeprosyUpon taking damage, grants a body part as an orbital, which blocks enemy shots and deals 7 damage per tick to enemies it comes in contact with. The orbitals will be destroyed if they take enough damage from enemies or enemy shots.
  • Filigree FeatherFiligree FeatherAngels drop items instead of key pieces when defeated.
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#3
  • 7 Seals7 SealsGrants a random Harbinger familiar that changes every 10 seconds.
  • Mr. ME!Mr. ME!Summons a controllable ghost that can perform various tasks depending on what it targets.
  • Angelic PrismAngelic PrismGrants a prism orbital with a large orbital radius. Tears that pass through the prism split into four multi-colored tears.
  • Pop!Pop!Replaces Isaac's tears with eyeballs that can bounce off of each other. The eyeballs are not limited by range, and will instead dissipate when they stop moving or when hitting an enemy or obstacle.
  • Door StopDoor StopThe last door Isaac went through stays open, allowing him to leave the room even if enemies are in it.
#4
  • Death's ListDeath's ListGrants a reward if all enemies in a room are killed in the order they are marked.
  • HaemolacriaHaemolacriaTears are now fired in an arc. Upon hitting the floor, an obstacle, or an enemy, they burst into many smaller tears in all directions. Increases tear delay.
  • LachryphagyLachryphagyIsaac's tears decelerate as they travel. Upon stopping or hitting an obstacle, they burst into 8 tears in all directions. Tears can be fired into other tears to feed them, increasing their damage.
  • TrisagionTrisagionTears are replaced with piercing white blasts of light.
  • SchoolbagSchoolbagAllows Isaac to hold two active items.
  • Extension CordExtension CordBeams of yellow electricity flow between Isaac and his familiars, damaging any enemies between them.
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  • Tar Boy.png
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#5
  • BlanketBlanketGrants one soul heart. Upon entering a boss room, grants a shield that blocks one hit, then disappears.
  • Sacrificial AltarSacrificial AltarUpon use, sacrifices up to 2 familiars and spawns an item from the Devil Room Pool for each familiar sacrificed.
  • Lil SpewerLil SpewerSpawns a random pill, and grants a small Spewer familiar that charges up and fires different types of creep.
  • MarblesMarblesSpawns 3 random trinkets. Taking damage has a small chance to swallow Isaac's currently held trinket, gaining its effect permanently.
  • Mystery EggMystery EggSpawns an egg familiar, which cracks and turns into a random friendly enemy when Isaac is hurt. The egg regenerates upon entering a different room.
  • Flat StoneFlat StoneTears bounce off the floor. Tears that hit an enemy after bouncing deal splash damage to all nearby enemies for 25% of Isaac's tear damage.
  • MarrowMarrowGrants one bone heart and spawns three red heart pickups.
  • Slipped RibSlipped RibSpawns a bone familiar that circles around Isaac and reflects enemy shots.
  • Hallowed GroundHallowed GroundSpawns a white poop familiar, which turns into a white poop when Isaac is hurt.
  • Pointy RibPointy RibSpawns a bone familiar that can be aimed with the fire buttons and does contact damage.
  • Book of the DeadBook of the DeadUpon use, spawns a friendly Bony or an orbital bone for each enemy killed in the current room.
  • Dad's RingDad's RingCreates a ring of light around Isaac that petrifies enemies in contact.
  • Divorce PapersDivorce PapersSpawns a Mysterious Paper, increases tears, and grants a bone heart.
  • Jaw BoneJaw BoneSpawns a familiar that flies the room while firing, dealing double Isaac's tear damage to enemies that come in contact and retrieving pickups.
  • Brittle BonesBrittle BonesReplaces all red hearts with 6 empty bone hearts. Upon losing a bone heart, Isaac fires bones in 8 directions and permanently gains a tears up.
  • Broken ShovelBroken ShovelWhile held, causes multiple Mom's Foots to come down and stomp on Isaac. One of two parts necessary to create Mom's Shovel.
  • Broken ShovelBroken ShovelOne of two parts necessary to create Mom's Shovel.
  • Mom's ShovelMom's ShovelSpawns a trapdoor that leads to the next floor upon activation. Unlocks The Forgotten when used on a mound of dirt that appears in The Dark Room.
  • Rotten PennyRotten PennySpawns a blue fly every time a coin is picked up.
  • Baby-BenderBaby-BenderGrants Isaac's familiars homing shots.
  • Finger BoneFinger BoneGrants a chance to gain a bone heart upon taking damage.
  • The Forgotten App.png
  • Crispy.png
  • Cross Stoney.png
  • Dank Charger.png
  • Leper.png
  • Mr. Mine.png
  • Mr. Red Maw.png
  • Boss The Matriarch.png
The Binding of Isaac: Rebirth The Binding of Isaac: Rebirth The Binding of Isaac: Rebirth
Achievements Achievements Attributes Attributes Bosses Bosses TarotCard.png Cards and Runes Challenges Challenges Chapters Chapters
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