Tainted Lazarus

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Tainted   Lazarus
and Dead Tainted Lazarus
Tainted Lazarus
Dead Tainted Lazarus
Full red heartFull red heartFull red heartFull soul heartFull soul heart
Table dividing line 1.png
Damage Stat Icon.png Damage
3.5 (*1.00)
3.5 (* 1.50)
Tears Stat Icon.png Tears
Shot Speed Stat Icon.png Shot Speed
Range Stat Icon.png Range
Speed Stat Icon.png Speed
Luck Stat Icon.png Luck
Table dividing line 2.png
Starting Items
Starting Item Icon.png PickupsAdded in Repentance15►Flip FlipCollectible Flip icon 2.png Flip
Starting Item Icon.png ItemsNoneNone
Unlock Method
The Enigma Use the Red Key or Cracked Key in Home as Lazarus Lazarus
Added in Repentance

Tainted Lazarus is a character added in The Binding of Isaac: Repentance. He is the alternate version of Lazarus Lazarus with living Tainted Lazarus having ragged hair and dirt, Dead Tainted Lazarus is the same but covered in blood and glassy eyes. Tainted Lazarus is unlocked by reaching Home Home and using either the 15►Red Key Red Key or the Cracked Key Cracked Key to access a special room in one of the walls while playing as Lazarus.

Tainted Lazarus has two different states: Tainted Lazarus and Dead Tainted Lazarus. Tainted Lazarus starts with 3 red hearts, whereas Dead Tainted Lazarus starts with 2 soul hearts. Both characters have their own attributes, as well as their own items and trinkets. Whenever a room is cleared, including each wave of multi-wave rooms like in Greed Mode and Challenge Rooms, Tainted Lazarus swaps between the two forms, essentially requiring the player to play each character on every other room. The flipping between forms will also effectively act as a room transition for items such as 15►It Hurts It Hurts. Tainted Lazarus starts with 15►Flip Flip in his consumable slot, which can be used to swap state immediately.

Notes[edit | edit source]

  • If the console command "restart 38" is put into the console, it is possible to start a run as Dead Tainted Lazarus without having to clear a room, however, you will not be able to change into Tainted Lazarus, whether that is from using 15►Flip Flip or from clearing a room.
  • Items that grant extra lives (15►Dead Cat Dead Cat, 15►1up! 1up!, 15►Lazarus' Rags Lazarus' Rags, etc.) only affect the one who picks them up. If Dead Lazarus collects an extra life item, it can only activate when Dead Lazarus is the active character, and vice versa.
  • Quest items are counted as both characters having them.
    • 15►The Polaroid The Polaroid and 15►The Negative The Negative work on both Living Tainted Lazarus and Dead Tainted Lazarus, regardless of which picked them up.
    • 15►Key Piece 1 Key Piece 1 and 15►Key Piece 2 Key Piece 2 will grant their Angel Room bonus to both characters, and will combine to a whole key even if the pieces are not on the same character.
    • 15►Knife Piece 1 Knife Piece 1 and 15►Knife Piece 2 Knife Piece 2 will combine to a whole knife usable by both characters regardless of who has which piece.
    • 15►Dogma Dogma's flight and stat bonuses are applied to both characters, but healing and Holy Mantle apply only to the active character when receiving it.
  • Temporary buffs such as 15►Razor Blade Razor Blade disappear when you switch from character to the other. This is especially noticeable in Greed Mode.
  • Only the character that picks up an activated item first gets the progress for related transformations, so the player needs to be aware of what character needs the transformation progress.
  • Tainted Lazarus takes a lot of micromanagement compared to most other characters. It can be difficult to accomplish simple tasks due to the forced switching between forms and 15►Flip Flip's long charge time. Try to stay ahead of this, and pay close attention to what form is active and when they will shift. Something such as collecting an item from a Treasure Room or Curse Room can potentially go wrong if enemies happen to be inside, as when they are defeated, Tainted Lazarus will switch form. This can lead to an undesired item on one form, or a forced use of Flip.
    • If an Angel Room has an item you would prefer on one form over the other, and Flip is not currently charged, using a bomb on the Angel Statue and fighting the Angel that spawns will make Tainted Lazarus flip upon the fight's completion.
    • Challenge Rooms and Boss Rush will flip Tainted Lazarus every wave.
  • Try your best to balance the forms' stats in a way that prevents runs from feeling "lopsided". An easy trap to end up in is one form feeling unstoppable, but needing to struggle through every other room with the other. Without use of 15►Esau Jr. Esau Jr., this is not a very sustainable strategy in later floors.
    • Try to boost Living Tainted Lazarus's range and damage, Dead Tainted Lazarus already has a large damage multiplier, so its less necessary to take large damage increasing items in this form.
  • Avoid high charge Active Items, as Items will only charge upon room completion for Tainted Lazarus's currently active form. This effectively makes any active item have double its charge time for Tainted Lazarus.
    • The player may desire to forgo Active Items entirely, as Lil Batteries and Battery Beggars will prioritize charging them over Flip, which may prove detrimental.
  • Tainted Lazarus's greatest strength lies in his precise control over his health bars. Using Flip strategically during boss fights is a key to victory. For example:
    • If one form runs out of Soul Hearts, but the other still has some, using Flip can help prevent loss of Devil Room or Angel Room chance.
    • Despite only being at half of his firepower at a time, Tainted Lazarus can utilize his potentially massive health pool to clutch out unlikely victories against late game bosses. If damaged down to lethal health, using Flip can extend the fight dramatically. This can be further improved by having one or both forms have healing options such as XIX - The Sun XIX - The Sun, Full Health Pills, or an Active Item like 15►Guppy's Paw Guppy's Paw.
  • Due to this strength, it may be advised to try for Angel Rooms over Devil Rooms, as many Angel Room items add health rather than take it away.
  • If one form of Tainted Lazarus has flight and a room is cleared while above usually inaccessible land, the player will need to be exit to the menu and continue the run to reposition the flightless form at a proper exit.
  • Greed Mode can be especially difficult for Tainted Lazarus. This is because temporary buffs that are usually really strong in Greed Mode, such as 15►The Book of Belial The Book of Belial or XI - Strength XI - Strength, will disappear when you switch from one character to the other, meaning you can only use them for a single wave.
  • Items that affect floor generation (for example Fragmented Card Fragmented Card) work only when a trapdoor that leads to the next floor is used by the character holding the item.
  • Items that affect room clear awards (for example 15►Contract From Below Contract From Below) work only when the character holding the item appears after clearing the room.
  • 15►Steam Sale Steam Sale is not shared between the two, consider giving it to the least powerful one, especially in Greed Mode.
  • Its confirmed that tainted Lazarus is in a Work In Progress (W.I.P) state, he and Tainted Apollyon where not fully developed due to release dates, they will be fully developed in further updates and booster packs.

Item Interactions[edit | edit source]

  • 15►Birthright Birthright: Currently unimplemented.
  • 15►The Stairway The Stairway: If you go down a floor while on the character not possessing the item, the Stairway will not spawn on that floor.
  • 15►Urn of Souls Urn of Souls: Neither character can collect souls when they are not active. This means that as soon as the room becomes cleared, all souls still in the air are lost, even after you Flip.
  • 15►Lost Soul Lost Soul: If one character has lost soul and it dies, it will respawn after that character is active again. Going to the next floor with the character that doesn't have lost soul will still grant its rewards once the character is active again.
  • 15►Glitched Crown Glitched Crown will work while either form is active.
  • 15►TMTRAINER TMTRAINER will only generate glitched items if the form holding it is the one to see the item first. This can allow the player to get normal, unglitched items onto the form holding TMTRAINER, and glitched items onto the form without it if desired.
    • Notably, this allows for Tainted Lazarus to obtain quest items such as 15►The Polaroid The Polaroid or 15►The Negative The Negative despite holding TMTRAINER. To do this, the form WITH TMTRAINER must be the one to fight Mom, due to the Polaroid and Negative spawning slightly after Tainted Lazarus flips forms.

Good Items[edit | edit source]

  • 15►Esau Jr. Esau Jr. is potentially Tainted Lazarus's best Item. This item acts differently for him and will take up both forms' Active Item slots, switching between the two of them on use. This effectively makes the item a one room charge Flip, allowing much more freedom with your playstyle, and if desired, focusing entirely on one form's build.
  • Items like 15►The Body The Body, 15►Cancer Cancer, and other drastic health increases allow Tainted Lazarus to tank large amounts of damage in longer boss fights if spread between forms.
  • Large damage increases such as 15►Cricket's Head Cricket's Head or 15►Synthoil Synthoil are useful to get onto Tainted Lazarus's living form early to make up for his damage deficit.
  • Having one form hold15►Guppy's Paw Guppy's Paw with a medium to large pool of heart containers can extend the potential time before needing to flip, extending your health bars even further.
  • 15►Star of Bethlehem Star of Bethlehem can be a good way to prevent one form from lagging behind the other power-wise.
  • 15►Diplopia Diplopia and 15►Crooked Penny Crooked Penny allow for potential duplications of strong items to get on both forms. Though keep in mind Devil Rooms or Angel Rooms would likely require the form holding them to be active upon entry. Locate the boss room, and if necessary, clear rooms until Flip is charged and you are playing as the form NOT holding Diplopia or Crooked Penny. Upon defeating the boss, Tainted Lazarus will Flip automatically, allowing the duplication of Devil or Angel Items, followed by flipping and taking the same item on the other form.
  • Low charge Active Items with simple, effective uses, such as 15►Shoop Da Whoop! Shoop Da Whoop!, 15►White Pony White Pony, or 15►Spider Butt Spider Butt can be recharged within one large room, and can supplement the lack of power Tainted Lazarus is prone to.
  • Offensive Active Items that charge on a timer, especially 15►Sharp Straw Sharp Straw and 15►Glass Cannon Glass Cannon, can make up tremendously for one form that happens to be lagging behind. The Sharp Straw in particular, due to how it calculates damage, can make the weaker form much more offensively viable during end game boss fights.
  • 15►The Battery The Battery allows a second storage of Flip, allowing it to be used slightly more freely.
  • 15►Jumper Cables Jumper Cables can allow for more use of one form's Active Item, or just more use of Flip.
  • In Greed Mode, if you take a hit with 15►Crown of Light Crown of Light, flip, then flip back, the Crown of Light will be active again.
  • Old Capacitor Old Capacitor is a great trinket to find. This will effectively turn Flip into a 12 charge item (due to only being active half of the time), however the increased spawning of Lil Batteries can allow more micromanagement to take place when a floor is finished, flipping between forms as needed.
    • Watch Battery Watch Battery is a good alternative, or even supplementary trinket to keep on the other form, as it increases chances of finding Lil Batteries as well.
  • Wisps created by 15►Book of Virtues Book of Virtues will remain after flipping between forms, and flipping to the form of Tainted Lazarus that is not holding the book will create a Flip wisp, even if Flip was not activated manually.

Bad Items[edit | edit source]

  • 15►Genesis Genesis doesn't work properly for Tainted Lazarus. Both forms will be fully reset, though the Genesis room only spawns options equivalent to the amount of items the form using it had. This typically results in a net loss of items, unless the player happened to stack a majority of items onto one form. However, this can be used in Greed Mode to avoid flipping between forms every wave greatly reducing the mode's difficulty.
  • High charge Active Items tend to be too high maintenance to get much use out of on Tainted Lazarus without an alternate plan to charge them.
  • While not exactly a bad choice, extra lives like 15►Dead Cat Dead Cat or 15►1up! 1up! require a bit more thought to get use out of, due to only reviving the form holding it. If a 1up! is found, try to have the form with more heart containers pick it up to get the most use from it.
  • Any effect that only lasts for the current room, like 15►Lusty Blood Lusty Blood, loses almost all use while in Greed Mode, as Tainted Lazarus will switch forms per wave. In normal and hard mode, this is only true in situations such as Challenge Rooms or Boss Rush.

Unlockable Items[edit | edit source]

Bugs[edit | edit source]

Bug Bug! PC When touching the white fire in Downpour II/ Dross II as either of Tainted Lazarus' forms, and then touching the white fire in the mirrored world as his other form, only the character used to pass through the mirror is able to return to their original form. The other character can freely pass to the mirrored world and back and remains as The Lost for the rest of the run.
Bug Bug! PC Exiting the run during the second or third wave of a Challenge Room will forcibly flip Tainted Lazarus when the run is continued.
Bug Bug! PC When one of the Tainted Lazarus' forms has Holy Mantle, after his other form flips into this one, Tainted Lazarus still won't gain the holy mantle effect until he leaves the room. Exit to menu screen and then continue the game, and holy mantle will work correctly.
Bug Bug! PC When one of the Tainted Lazarus' forms has Lost Soul, if it dies, flipping into Tainted Lazarus' other form and flipping back will revive it, guaranteeing its rewards in next floor.
Bug Bug! PC If Tainted Lazarus uses Abyss and switches forms, the flies generated disappear permanently.
Bug Bug! PC If Tainted Lazarus uses Decap Attack and switches forms without recovering his head, upon switching back again that form's tears will appear from a point seperate from his body, until Decap Attack is used again.
Bug Bug! PC When getting the Guppy transformation as either of the Lazes, flies will not spawn but flight will still be granted to the Laz with the transformation
Bug Bug! PC When fighting Rotgut, whichever form was used for the first phase will temporarily become invisible after killing the third phase and Rotgut's death animation plays. This is purely visual.


Isaac CharNav New.png Maggy CharNav New.png Cain CharNav New.png Judas CharNav New.png BB CharNav New.png Eve CharNav New.png Samson CharNav New.png Azazel CharNav New.png Lazarus CharNav New.png Eden CharNav New.png Lost CharNav New.png


Tainted Isaac CharNav New.png Tainted Maggy CharNav New.png Tainted Cain CharNav New.png Tainted Judas CharNav New.png Tainted BB CharNav New.png Tainted Eve CharNav New.png Tainted Samson CharNav New.png Tainted Azazel CharNav New.png Tainted Lazarus CharNav New.png Tainted Eden CharNav New.png Tainted Lost CharNav New.png Tainted Lilith CharNav New.png Tainted Keeper CharNav New.png Tainted Apollyon CharNav New.png Tainted Forgotten CharNav New.png Tainted Bethany CharNav New.png Tainted Jacob CharNav New.png

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