"Waggles a finger"
(page 5, column 3, row 1) (page 5, column 4, row 1)
Metronome is an unlockable activated item added in Afterbirth †.
Effect [ ]
Grants a random item's effect for the current room.
Notes [ ]
Beware using this as
, as it can trigger self-harm items and kill him. The Lost Using this item multiple times in the same room will replace the previous item with a new one.
Metronome cannot grant the effects of itself,
, or Glowing Hour Glass . Plan C Keep in mind that you can trigger items you haven't unlocked yet, which means you could trigger the effect of items like
without having to go through the trouble of unlocking them. Death Certificate If Metronome triggers the effect of , it will disappear from the active slot, just as with the real item. Genesis
Interactions [ ]
/ Blanket / Holy Card / Holy Mantle : if Metronome is used while the shield is active, any stat changes or familiars/orbitals generated from Metronome will persist between rooms until Metronome is used again or replaced with another active item. Items that modify your stats and have other additional effects will keep the stats but the effect will be gone after leaving the room. For example, the tears down applied from Wooden Cross will persist between rooms, but Isaac will not shoot three tears at once.
The Inner Eye Some tear effects from items will remain active between rooms. These include:
, Continuum , Epic Fetus , Eve's Mascara , Godhead , Ipecac , Jacob's Ladder , The Ludovico Technique , A Lump of Coal , Monstro's Lung , My Reflection , Ouija Board , Pop! , Rubber Cement , Sacred Heart , Spoon Bender , Strange Attractor Technology Zero Some items behave unusually after leaving the room while the Holy Mantle shield was active:
Items that grant flight: Isaac's appearance is reset back to normal, but he is still able to fly.
: the mushroom familiar continues to follow Isaac, but doesn't grant an extra life. 1up!
: the tear appearance is reset back to normal, but the tears still travel through enemies. Cupid's Arrow
: the tear appearance is reset back to normal, but tears can still explode when they hit an enemy. Fire Mind
: the tear appearance is reset back to normal, but tears will still leave green creep on the ground. Mysterious Liquid : does not persist between rooms. Spear of Destiny
: The wisp spawned will be based on the item it mimicked. Book of Virtues : Metronome is activated twice at once as expected, but the item chosen for the first activation is shown raised above Isaac's head, instead of the second one that actually remains active. Car Battery
Specific Item Effects [ ]
Certain items used by Metronome have permanent, limited/unusual, or no effect. It is not clear what is intended and what is a bug.
Permanent effects include:
Health, coins, bombs, or keys that are granted to Isaac directly will persist.
will permanently remove the latest item and change character. Clicker
granted by Cube of Meat will persist. Potato Peeler
's rerolled stat multipliers will persist, D8 or D4 will reroll all items permanently and D100 mimicking any of the previous also has the same effects. D Infinity
will permanently grant the passive version of Damocles. Damocles
's stat changes will persist. Dataminer
will restart the level. Forget Me Now
will give Isaac a Magic Skin broken heart, spawn an item, and count as an activation of Magic Skin, causing future items to have a chance of being replaced by Magic Skin.
will restart the run, retaining all items. R Key absorbing passives and granting stats will persist. Void Limited and unusual effects include:
Items do not spawn pickups and consumables that they might when picked up normally.
Items that adjust Isaac's size will not do so.
and 1up! give no indication of extra lives, but will still work if you die in the room. Guppy's Collar
will not remove red hearts or grant black hearts. Abaddon
and Belly Button allow picking up two trinkets in the room, but if another one is picked up outside, one trinket disappears completely along with the extra slot. Mom's Purse
only adds a black heart and does not remove curses. Black Candle
and Brittle Bones do not grant bone hearts. Brittle Bones can still be used to gain permanent tears ups if bone hearts are available. Divorce Papers
only adds soul hearts, no damage multiplier. Crown of Light
will only restore one red heart without setting heart containers to 1. It also gives no extra lives. Dead Cat
, Deep Pockets , Little Baggy , and Polydactyly allow picking up two consumables while in the room and kept outside, but using them will lose the extra slot. Starter Deck
will not grant an extra item for the next run. Eden's Blessing
only grants flight, no Fate eternal heart.
will not identify pills, but they are still guaranteed to not be negative. PHD
allows picking up two activated items while in the room and they can be kept even outside, but the extra slot and one of the items is lost if another activated item is picked up. Schoolbag stats increases and Isaac's appearance revert on changing rooms, but Isaac retains the shadow of his large size, the ability to crush rocks, and invulnerability until the 30 seconds are up. Mega Mush The following items remain active until the Metronome is used again or replaced with another active item:
The following items have no effect:
Items that only spawn pickups or consumables are not mentioned separately.
, Ankh , Blue Map , Breath of Life , Broken Watch , Camo Undies , C Section , The Candle , The Compass , Contagion , Death's List , Experimental Treatment , Holy Mantle , The Jar , Judas' Shadow , Lazarus' Rags , Marrow , The Mind , Missing No. , More Options , Notched Axe , Poke Go , Purity , Red Candle , Spelunker Hat Treasure Map
Trivia [ ]
The name, pickup quote, and effect of this item are a reference to the move '
Metronome' from the Pokémon franchise. This item works similarly to the item . Dead Sea Scrolls
Bugs [ ]
PC It is possible for this item to use an item that can teleport one to the I AM ERROR room. During the Mother Boss fight, this can happen. Using the trapdoor causes the game to crash.
PC It is possible for this item to give an indefinite effect that persists throughout rooms, eventually killing the player.
Breath of Life
PC If is activated through Metronome, it won't shoot fire and Isaac could get stuck with the urn in his hands unable to shoot tears. You can fix this by exiting and continuing the run, restarting the room without the urn and without Metronome charges.
Urn of Souls
PC Using Metronome in the Cantripped! challenge can cause the game to crash.