Upon use, destroys all pedestal items in the room.
If Void destroys an active item, it gains the ability of that item - whenever Void is used, it will simultaneously use all previous active items that were absorbed in the same order they were absorbed.
If Void destroys a passive item, the player gains 2 random stat boosts. Possible stat changes include:
Using Void to absorb items in Boss Rush or challenge rooms counts as taking the items and will cause waves of bosses or enemies to start spawning.
The ability of the newly absorbed active item(s) will activate even if the item has no charge. Using any multiple-use item before absorbing it with Void will effectively allow you to use the item twice.
If Void is used while Isaac is holding an item above his head, it can still consume the item, allowing to immediately absorb passive items bought from Devil Deals, Black Markets or Shops. This also can be used to give the player a chance to see what a ? item is before deciding if they want to consume it, if they are quick enough.
The newly absorbed active item(s) won't be used right away, but with the next usage of Void.
If Isaac absorbs items from a room with choice pedestals, it will count as absorbing only one item.
If Isaac finds another Void, such as during a Victory Lap where it is left behind in the previous lap, it will have the same active effects stored in it as the other Void.
Consuming a second Void will create no effect.
If multiple copies of an active item are absorbed, using Void will activate that effect equally many times.
Absorbing items that would normally count towards transformations upon pickup does not give progress toward transformations.
Stat boosts upon destroying passive items are determined by the seed and are tied to the number of items destroyed, not the items themselves. If the player runs the same seed and chooses to consume different passive items, the same stat boosts will be gained.
Stat boosts are permanent and are retained if Void is dropped.
Using Void to absorb Key Piece 1 and Key Piece 2 will not permanently remove them from the run. They will continue to spawn after defeating Uriel or Gabriel no matter how many times you consume them, as long as you do not pick them up normally.
Void can be used generate free stat upgrades, as well as gain numerous copies of active items without use of Diplopia or the Crooked Penny. This is done by placing a bomb near the item and taking damage during the first 4 frames of Void's use animation, while touching the item pedestal at the same time.
Single-use items won't be used upon their absorption, but on the next usage of the Void, which allows to use the absorbed item later when needed. Their effects will still not be activated after the initial item effect.
Sacrificial Altar is properly absorbed, unlike other one-time use items, allowing Isaac to sacrifice familiars and obtain Devil Room items with each activation of Void. Possibly a glitch or oversight.
Abyss: Consuming Abyss simply overrides the Void's stat bonus/active item mimicking effect when used to consume another item, acting as a six-charge Abyss afterwards.
Alabaster Box: Void obtains the effect of the item, but for only one use.
Blank Card / Placebo: If an item that gives Isaac a new consumable is absorbed before these items, that consumable gets used instead, possibly resulting in nothing or a harmful effect.
Blank Card + ? Card: Using the ? Card with an absorbed Blank Card has no effect at all. Isaac will not be teleported to the I AM ERROR room and the item and card are unaffected.
Book of Virtues: Spawns the wisps of all the active items Void has absorbed. Spawns no wisps by itself. Using Void on Book of Virtues will give stat upgrades instead of its normal effect, as Book of Virtues is considered a passive item.
Clicker: If Void is either Isaac's only item or the item most recently picked up, it will be lost upon absorbing and thus activating the Clicker.
The D6 / D100: If absorbed while there are other pedestal items in the room, it will reroll the items before absorbing them. Likewise, if The D6 or D100 was previously absorbed and Void is used, pedestal items will get rerolled before being absorbed.
D Infinity: When absorbed and Void is used, replicates the effect of a random dice item.
Acts as a copy of one of the 10 dice D Infinity can replicate, this dice is randomly chosen and does not change.
Diplopia: On the next use, the pedestal items in the room will be consumed but another copy of the items will be spawned afterward.
Everything Jar: Consuming the Everything Jar will cause Void to spawn a poop when used, regardless of charge level.
Glowing Hour Glass: Upon using Void, Isaac is sent to the previous room and most changes are reverted, nullifying many other effects that Void may have absorbed. If the Glass is absorbed in a shop, Isaac is sent back to the previous room, but the Glass will be unused in the shop on its pedestal. This allows for an infinite shop donation circle, eliminating the need for a battery to be present in the shop.
Charges are reset back to full upon each use, allowing for infinite re-tries of any room. This does, however, prevent any other items consumed previously, or from consuming any further effects as Void will instead reset the room.
How to Jump: Be wary with this combination; without an infinite recharge, it is possible to jump to a spot that there is no way of returning from. (This can be fixed by going to the main menu and then resuming the game, however.)
The Jar: Absorbing it with Void will not allow Isaac to pick up excess hearts.
Jar of Flies: Absorbing it with the Void will not allow the collection and generation of flies.
Mom's Box: Drops a trinket every time the Void is used. The other passive effects of holding the box do not apply to the user.
Moving Box: Moving Box will not be added to Void; instead, it is converted into stat boosts like a passive item.
A Pony: Absorbing it with Void will not give a passive ability to fly; however, Isaac will still charge in the first direction chosen.
Remote Detonator: Absorbing it with Void does not cause bombs to remain on the ground until Void is used, but using Void explodes all player-placed bombs as usual.
Spin to Win: A spinning top orbital will spawn every time the Void is used. The orbitals will last until Isaac leaves the room.
Stitches: Absorbing it with the Void won't do anything since the familiar Isaac normally swap places with doesn't spawn.
White Pony: Absorbing it with Void will not give a passive ability to fly. Isaac will still charge in the first direction chosen, but no beams of light will spawn.
Absorbed, multistage Active Items such as Shoop Da Whoop! or Red Candle: Using Void while holding a passive item above Isaac's head will not absorb the item.
Void concept art.
When this item was originally teased, it had a recharge counter of four and converted pickups into blue flies; in its release, it was nerfed to a recharge counter of six and the effect on pickups was split to an entirely new item altogether.
Before the balance patch on 5 January 2017, Void synergized with single-use items and constantly trigger them upon each use of Void; this has since been removed.
Void is the only Afterbirth † item with a quality of 4, besides Mom's Shovel and the Broken Shovel pieces.
The swirl in Abyss's appearance is in the opposite direction of Void's.
If the player has overcharge from The Battery, using absorbed items that the player can "put away" (e.g. Shoop Da Whoop!, Bob's Rotten Head, and Notched Axe) will use all the overcharge, even when the player puts away the items. In the case of Notched Axe on its own, using Void will use all charges at once.
After absorbing White Pony, the beams of light effect from White Pony will not trigger when selecting the dash direction using player movement controls. However, choosing the direction using tear shot controls will indeed spawn light beams along the dash after the use animation of Void has finished and if the player is not currently moving.
PC If you spam Void upon entering a room while you have the Glowing Hour Glass consumed, there's a chance that the Glowing Hour Glass effect will not trigger, allowing you to consume any pedestal item in the room. You will however not be able to move, and will be force to quit and continue to resume your run.
Pedestal items do not vanish instantly upon Void usage, implying that the item can be picked up while "disappearing". While the animation when using the Void prevents picking up pedestal items, this can be circumvented by cancelling the animation (e.g. using bombs or timed damage mechanisms like Shard of Glass) or by having another player.