AIsaac is a character in The Bimbing of AIsaac: Reedged, a mod for The Binding of Isaac.

Bomb Bag unless in a challenge

Pacemaker (inherent) once unlocked and unless in a challenge

x1.25 bomb explosion radius multiplier.

The damage he takes from his own bombs prioritises red health and counts as self-damage, thus not decreasing the deal chance.

When his bombs explode, performs different "Bimb Strats" that depend on different conditions and have effects.

Places a free bomb when entering a new floor or at the start of a run. This bomb adds an "Instant" modifier to its bimb start.

If he has bombs, he will place one automatically every 34 / (33+BombAmount) * random(45, 90) seconds.
So the more bombs he has, the more often he auto-places them.

AIsaac's bulb lights up when there are less than 10 seconds before he auto-places a bomb.

Placing a bomb manually will reset the timer.

Loses all his abilities in challenges, becoming functionally identical to Isaac.

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List of all "Bimb Start"s and their effects:

Modifier ".. Fail!"
When AIsaac takes damage from the bomb;
• Alters some of Bimb Start effects.

Main "Bimb Strat!"
Default, gets overriden by other Mains;
• +0.25 flat damage for the rest of the floor. It is not affected by AIsaac's damage reduction.
Fail:
• Instead of his natural 45%, AIsaac gets ~73% of damage ups for 30 seconds, decaying over time.
• Stacks, AIsaac gets 100% of his damage ups at 60 seconds, and +20% for every 30 seconds after that.

Main "Corner Bimb Strat!"
When the bomb explodes less than 2.5 tiles away from any of the corners of the room.
• +1.75 luck for the rest of the floor.
Fail:
• +1 Fire Rate for 40 seconds, decaying over time.
• Stacks, adding only half of the value for every 40 seconds (+0.5, +0.25, etc).
• -1 luck for the rest of the floor.

Main "Escape Bimb Strat!"
In uncleared rooms, when the bomb explodes less than 2 tiles away from any door.
• +0.2 speed for the rest of the floor.
Fail:
• -0.75 speed, +2 flat damage, +2 Fire Rate for 3 seconds, decaying over time.

Main "Delayed Bimb Strat!"
If AIsaac left the room with the bomb.
• Overrides other Mains.
• +0.05, +0.15 flat , +1.25, +0.2 for the rest of the floor.
Fail:
• Doesn't give any stat ups.

Main "Spiked Bimb Strat!"
If the bomb exploded next to a Curse Room door.
• Overrides "Escape Bimb Strat".
• Triggers Book of Shadows effect.
Fail:
• Triggers III - The Empress and XV - The Devil effects.

Modifier "Instant .."
• Triggers every other Bimb Strat of the bomb the second time.

Modifier "Giga .."
If the bomb is a {{i.}}
• Overrides "Instant" modifier.
• Triggers every other Bimb Strat of the bomb four more times.

Modifier "Smart .."
If the bomb explodes 3+ enemies.
• +0.25 flat damage for the rest of the floor.
• Heals half a heart.

Modifier "Secret .."
If the bomb explodes near the secret/super secret room door. (once per secret room)
• +
Fail:
• +

Modifier "Bimb .."
If the bomb explodes on top of "Bimb Strat!" text in the very first starting room. (once per run)
• Drops XVII - The Stars card.
Fail:
• Drops IV - The Emperor card.

The following special synergies and interactions for AIsaac have been documented.

* Note that not all possible synergies and interactions are listed here.

AIsaac's appearance with Charm of the Vampire is a reference to AIsaac 11 who "learned to eat the brain of #10".

AIsaac has special skins that not only alter his appearance, but vs. and transition sprite as well.
• Ghostsaac - when in the ghost form (White fire places or Soul of the Lost). Looks like a green ghost.
• Marksaac - after picking up Marked. Looks like AIsaac, but with fur, cat ears and red blush.
• AIsaac 10 - after using The Forbidden Snack. The Forbidden in AIsaac's body.
• Ghostsaac 10 - with AIsaac 10 skin, in the ghost form. Looks like AIsaac the Forbidden.

• Download The Bimbing of AIsaac: Reedged from the Steam Workshop.