Binding of Isaac: Rebirth Wiki

(in Repentance)

Modeling Clay is an unlockable trinket added in The Binding of Isaac: Repentance.

Effects[ | ]

  • Has a 50% chance to mimic the effect of a random passive item from the current room’s item pool when entering a room.

Notes[ | ]

  • Modeling Clay can only mimic items that have the "summonable" item tag, the same way Collectible Lemegeton iconLemegeton selects the wisps it summons.
  • The item given by Modeling Clay is seeded and based on the room Isaac is in.
  • Items that would give or remove consumables or heart containers will not do so if Modeling Clay mimics them.
  • If Isaac holds multiple copies of Modeling Clay, they will all mimic the same item.
    • Note: This will not give multiple copies of the item, Isaac will only receive one copy.

Synergies[ | ]

  • Golden Trinket Golden Trinket / Collectible Mom's Box iconMom's Box: Increases the chance of triggering to 100%.
  • Collectible Rock Bottom iconRock Bottom: Permanently increases Isaac's stats when it transforms into an item that surpasses Isaac's current stats.

Interactions[ | ]

  • Collectible Chaos iconChaos: Removes the room pool constraint for Modeling Clay's available items.
  • Collectible Sacrificial Altar iconSacrificial Altar: If Modeling Clay is currently mimicking a viable familiar, it will also be sacrificed and spawn an additional Devil Room item, but Modeling Clay will not be destroyed.
  • Collectible TMTRAINER iconTMTRAINER: Modeling Clay cannot copy glitched items; it will do nothing and not have a sprite if it tries to.
  • Collectible Sacred Orb iconSacred Orb: Temporary items are affected by Sacred Orb.

If Modeling Clay mimics the following items, they will behave in the following ways:

  • Collectible 9 Volt icon9 Volt: 1-room charge active items will not recharge over time. Other active items are affected normally.
  • Collectible Belly Button iconBelly Button / Collectible Mom's Purse iconMom's Purse: Allows Isaac to hold another trinket alongside Modeling Clay if he picks it up while Modeling Clay mimics the item, and he will continue to hold both even after Modeling Clay changes. If Isaac tries to pick up another trinket while he already has two, it will instead be destroyed and he will only be able to hold one trinket again.
    • Isaac can safely exchange cards/pills/trinkets by manually dropping them, at the cost of being unable to hold two.
    • Extra trinkets held this way are susceptible to not working properly, if at all.
  • Collectible Black Candle iconBlack Candle: Does not remove the current floor’s curse.
  • Collectible Bloody Lust iconBloody Lust / Collectible Bloody Gust iconBloody Gust / Collectible False PHD iconFalse PHD / Collectible Keeper's Sack iconKeeper's Sack / Collectible Rock Bottom iconRock Bottom: Stat boosts will not persist after Modeling Clay changes. If it mimics that item again, it will remember the stat boosts they gave.
  • Collectible Blue Map iconBlue Map / Collectible The Compass iconThe Compass / Collectible The Mind iconThe Mind / Collectible Treasure Map iconTreasure Map: Does not reveal rooms on the map.
  • Collectible Candy Heart iconCandy Heart / Collectible Soul Locket iconSoul Locket: Stats granted from picking up hearts will persist after Modeling Clay changes.
  • Collectible Cambion Conception iconCambion Conception / Collectible Immaculate Conception iconImmaculate Conception: If Isaac can somehow meet the requirements for these items to spawn familiars, the familiars will persist for only one room after Modeling Clay changes.
  • Collectible Delirious iconDelirious / Collectible Mr. ME! iconMr. ME!: Has no effect, even if Isaac uses his active item.
  • Collectible Dog Tooth iconDog Tooth / Collectible Spelunker Hat iconSpelunker Hat / Collectible X-Ray Vision iconX-Ray Vision / Collectible YO LISTEN! iconYO LISTEN!: Will reveal/open neighboring Secret Rooms.
  • Collectible False PHD iconFalse PHD / Collectible PHD iconPHD: Pills’ effects will be changed, but they will not be identified.
  • Collectible GB Bug iconGB Bug: The familiar respawns every time the trinket mimics the item.
  • Collectible Glitched Crown iconGlitched Crown: Items that are spawned while it’s being mimicked will cycle between 5 different items, even after Modeling Clay changes.
  • Collectible Isaac's Tomb iconIsaac's Tomb / Collectible Voodoo Head iconVoodoo Head: If Isaac can enter a trapdoor to the next floor while it’s being mimicked, they will have their normal effects.
  • Collectible Little Baggy iconLittle Baggy / Collectible Polydactyly iconPolydactyly / Collectible Starter Deck iconStarter Deck: Allows Isaac to hold two cards and/or pills if he picks them up while Modeling Clay mimics the item, and he will continue to hold both even after Modeling Clay changes. If Isaac tries to pick up another card/pill after Modeling Clay changes, the inactive card/pill he was holding will be destroyed and he will only be able to hold one card/pill again.
    • If Isaac goes to a new room while Modeling Clay mimics Starter Deck/Little Baggy, cards/pills in the new room will be converted appropriately.
  • Collectible Member Card iconMember Card: The special trapdoor will not spawn.
  • Collectible Missing No. iconMissing No.: Does not reroll items, unless carried to another floor.
  • Collectible Sanguine Bond iconSanguine Bond: The unique spikes will not spawn.
  • Collectible Schoolbag iconSchoolbag: If Isaac picks up another active item while Modeling Clay mimics the item, the other active item is dropped after Modeling Clay changes.

Strategy[ | ]

Modeling Clay can open additional advantages if a particularly helpful item is chosen for a given room. Exploring all rooms to see what effects are available may be worthwhile to gain the most value of the trinket:

  • Explosive shots: Allows Isaac to destroy rocks and open Secret RoomSecret Room doors without spending resources.
  • Damage-triggered items: To gain extra value from using Machines/BeggarBeggars that take health or Sacrifice RoomSacrifice Rooms. Note that stats given by on-hit items will not persist outside the rooms they were used in.
    • Collectible Hallowed Ground iconHallowed Ground can be used first to spawn a white poop next to a Machine/Beggar that takes health to give Isaac the chance to resist damage taken from using them.
  • Collectible The Battery iconThe Battery: Allows Isaac's active item to be overcharged; overcharging will persist after Modeling Clay changes.
  • Collectible Cancer iconCancer / Collectible The Wafer iconThe Wafer: Reduces the damage taken from Sacrifice Rooms to half a heart, allowing Isaac to use them more.
  • Collectible Echo Chamber iconEcho Chamber: Cards and runes’ effects will be stacked if used while it mimics the item. The game will remember what cards and runes were used if it turns into Echo Chamber in the future, even on later floors.
  • Collectible Lucky Foot iconLucky Foot / Collectible PHD iconPHD / Collectible Virgo iconVirgo: Bad pills will be their good counterparts while mimicking these items, making them much safer to use.
  • Collectible Marbles iconMarbles: Allows trinkets to be smelted if Isaac can deal damage to himself while it mimics the item.
  • Collectible Pyromaniac iconPyromaniac: Lets Isaac heal off explosions in the current room. Can be used to greater effect in rooms with TNTTNT or Bomb BumBomb Bums.
  • Collectible Restock iconRestock: Items will restock themselves as normal.
  • Collectible Scapular iconScapular: To gain a Soul HeartSoul Heart if at low health. This will not work if the damage source is considered "health donation", such as from a Blood Donation MachineBlood Donation Machine, Devil BeggarDevil Beggar, ConfessionalConfessional, or Hell GameHell Game, but it will work for Curse RoomCurse Rooms and Sacrifice RoomSacrifice Rooms.
  • Collectible Sharp Plug iconSharp Plug: Isaac’s active item can be instantly recharged at the cost of red hearts.
  • Collectible Steam Sale iconSteam Sale: ShopShop items and pickups will be discounted.
  • Collectible Tarot Cloth iconTarot Cloth: Cards will have their effects boosted.

In-game footage[ | ]

Trivia[ | ]

  • The trinket's icon appears to be a clay model of Meat Boy from Super Meat Boy, another game by Edmund McMillen.
  • The item is a direct reference to the item of the same name in The Binding of Isaac: Four Souls, which turns into another available item when used.
  • In addition, the item is possibly a reference to the Self-forming Clay item from the rogue-like deckbuilder Slay the Spire

Bugs[ | ]

Bug Bug! Walking between rooms back and forward with Modeling Clay may cause the game to crash at random.
Bug Bug! Normally, Modeling Clay's appearance changes to reflect what item it's imitating. This is not the case if the trinket is absorbed, e.g. through Collectible Smelter iconSmelter. It will appear in the Found HUD where passive items appear, like other absorbed trinkets, but will never change its appearance.