Butter!

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Complete 2 Victory Laps and start a 3rdButter!

Butter! is an unlockable trinket added in Booster Pack #1.

Effects

• Using an active item will drop it onto a pedestal on the ground.
• When Isaac takes damage, there is a 2% chance one of Isaac's passive items will drop on the ground.

Synergies

• Void: Items that are normally unusable when holding Butter! can still activate their effects if absorbed by Void.

Interactions

• Consumable actives: Active items that remove themselves upon use do not drop and are consumed as normal.
• Controllable actives: Active items that require additional input to control after being used (like The Candle or Breath of Life) create no effect and are dropped on the ground. They retain charge when picked up.
• Familiar spawning actives: Active items that spawn blue flies, blue spiders, or items like Monster Manual will spawn those familiars before dropping.
  • This applies to active items that spawn pickups.
• Glowing Hour Glass: Is removed from Isaac and dropped, but is given back to Isaac discharged upon going back in time into the previous room. The room in which Glowing Hour Glass was used will not contain another Glowing Hour Glass.
• How to Jump: Isaac animates a jump but his movement remains normal and he cannot go over any obstacles.
• Metronome: Effect from the Metronome is immediately canceled beyond the gain of hearts, coins, bombs, or keys. Visual effects may persist until leaving the room.
• Razor Blade: Deals damage to Isaac as normal but does not increase damage for the current room.

No Effect

Butter! will immediately cancel the effects of and discharge these active items when dropped, unless they are consumed with Void.

• Anarchist Cookbook
• Black Hole
• The Book of Belial
• The Boomerang
• Breath of Life
• Brown Nugget
• Crack the Sky
• D Infinity
• Doctor's Remote
• Friendly Ball
• The Gamekid
• Glass Cannon
• The Hourglass
• My Little Unicorn
• The Nail
• Notched Axe
• Pause
• A Pony
• Scissors
• Shoop Da Whoop!
• Sprinkler
• Telepathy for Dummies
• Unicorn Stump
• White Pony
• Wooden Nickel

Trivia

• Butter! was made by Florian Himsl (developer and programmer of the original The Binding of Isaac game).

Gallery

• 

  Butter!'s appearance prior to Booster Pack #4.

• 

  Concept for the Butter item on the top left corner, along with other trinkets and items, by Edmund McMillen.

Bugs

• Bug! When using The Pinking Shears with Butter, only the head is spawn and its effect is very similar to Transcendence.

Active Item Modifiers

Items:

• The Battery
• Car Battery
• Sharp Plug
• Void

Trinkets:

• Broken RemoteTriggers the Teleport effect whenever an activated item is used.
• Butter!Using an active item will drop it onto a pedestal on the ground. Taking damage may result in dropping a passive item.
• Dim BulbProvides a boost to all stats when Isaac's active item is completely uncharged.
• Vibrant BulbProvides a boost to all stats when Isaac's active item is fully charged.

Cards:

• ? CardWhen used, copies the effect of Isaac's currently held activated collectible.

Booster Packs
#1	HairpinFully recharges Isaac's active item upon entering a boss fight. Wooden CrossGrants a Holy Mantle shield upon entering a new floor, which protects against one hit of damage. Butter!Using an active item will drop it onto a pedestal on the ground. Taking damage may result in dropping a passive item. Huge GrowthMakes Isaac large for the current room, increasing his range and damage. Ancient RecallSpawns 3 random cards. Era WalkFor the current room, enemies are slowed, Isaac's speed is increased, and his shot speed is decreased.
#2	Filigree FeatherAngels drop items instead of key pieces when defeated.
#3	Door StopThe last door Isaac went through stays open, allowing him to leave the room even if enemies are in it.
#4	Extension CordBeams of yellow electricity flow between Isaac and his familiars, damaging any enemies between them.
#5	Rotten PennySpawns a blue fly every time a coin is picked up. Baby-BenderGrants Isaac's familiars homing shots. Finger BoneGrants a chance to gain a bone heart upon taking damage.