Memento Mori - The Binding of Isaac

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Samael

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Memento Mori is an unlockable active item in Samael, a mod for The Binding of Isaac.

Spawns a sigil underneath Isaac, up to a maximum of 5, with each sigil being linked to the previous one.

Upon trying to spawn a 6th sigil or by double-clicking, Isaac slashes through each sigil, damaging enemies caught between them and ones nearby.

Amount of damage dealt is determined by a formula: 1 × TearsStat × DamageStat × (0.666 * Sigils crossed) with the latter being a combo bonus. The damage dealt by Memento Mori cannot be lower than 0.6.

The amount of times damage is dealt is determined by how many tears Isaac fires at once (items such as Loki's Horns, Mom's Eye, or Eye Sore are unaccounted for).

Every slash inherits Isaac's tear effects.

Slashing also gives a brief window of invulnerability and a very slight push afterward, which also allows dashing through spikes, and entering Curse Rooms for free.

Sigils and sigil links change their color and overall appearance depending on Isaac's tear color and certain items.

Defeat Delirium as Tainted Samael.

Memento Mori can be found in the following item pools:

Name	Weight
Angel Room	0.1/1.0
Greed Angel Room	0.1/1.0
Death Deal	0.4/1.0

The following tags are applied to this item:

Id	Description
nocantrip	Not available as card effects during the Cantripped! challenge.
offensive	Can appear for Tainted Lost.

The following special synergies and interactions for Memento Mori have been documented.

Mod	Item	Synergy
---	Book of Virtues	Spawns purple wisps on spawned sigils. They shoot in the direction of fire dealing 3 damage and dying instantly.
---	Spoon Bender	With homing, each sigil link tries to home on an enemy, just like lasers.
---	Number One	While slashing, shoots Number One shots from the sides that also leave yellow creep upon dying.
---	Halo of Flies	Adds a fly orbital to each sigil that blocks enemy projectiles.
---	Dr. Fetus	Places Isaac's bomb on sigils that explode only upon slashing through. When paired with Rocket in a Jar: Still places them on sigils but instead of exploding bombs upon crossing, fires rockets in the direction of slashing. This could also damage Isaac if the explosion was too close when Memento Mori ended.
---	Technology	Spawns laser eyes in place of sigils that attack enemies on sight.
---	Chocolate Milk	Reduces combo bonus output by x0.85.
---	The Parasite	Shoots parasite tears from the sides while slashing.
---	Brimstone	Upon slashing shoots a brimstone laser between each linked sigil, with each laser being bigger with each sigil crossed. With tear multipliers such as The Inner Eye, shoots additional, small, short-lasting Brimstone lasers for each additional tear in a random direction after each sigil has been crossed. Reduces combo bonus output by x0.85.
---	A Lump of Coal	The damage increases the further the target is from Isaac or from a sigil.
---	Proptosis	The damage increases the closer the target is to Isaac or to a sigil.
---	Ipecac	Damage dealt through slashing with Ipecac is halved. After slashing a mark applies poison to enemies hit and makes them explode.
---	Tough Love	After slashing through a sigil, has a slight chance to shoot a tooth shot in the direction of slashing.
---	Technology 2	Laser is constantly fired between linked sigils.
---	Epic Fetus	Upon activation, shoots a laser from above instead of slashing, shooting Epic Fetus bombs behind. Completes without Isaac.
---	the Black Bean	After slashing through a sigil, leaves a fart behind.
---	Midas' Touch	Has a chance to apply the Midas' Touch effect on hit.
---	Eye of Greed	Has a chance to apply the Midas' Touch effect on hit.
---	Lost Contact	Sigils gain shields that block enemy projectiles.
---	Anti-Gravity	Upon activation completes slashing by itself, without Isaac.
---	Cricket's Body	After slashing through a sigil, leaves Cricket's Body tears behind.
---	Tiny Planet	All slashes curl around each sigil before going next.
---	Tech.5	Sometimes fires a laser between linked sigils.
---	Fire Mind	Spawns a fire on each sigil. Slashing leaves fire jets behind.
---	Strange Attractor	Enemies are pulled towards sigils.
---	Mysterious Liquid	Every sigil spawns a puddle of toxic creep underneath. Slashing leaves a fat creep behind.
---	The Ludovico Technique	Sigils can be moved with fire inputs.
---	Godhead	Every sigil inherits Godhead's aura.
---	Continuum	Makes Isaac slash through the entire screen instead of just between linked sigils, truly like a storm that is approaching.
---	Holy Light	Slashing leaves a trail of light beams behind. Every hit has a chance to hit an enemy with a light beam.
---	Marked	Sigils are created underneath the mark instead.
---	Tech X	Additionally spawns laser rings on each sigil.
---	Tractor Beam	Tears travel between linked sigils.
---	Evil Eye	After slashing through a sigil, has a slight chance to shoot an evil eye in the direction of slashing.
---	Black Powder	If Isaac made a reverse pentagram via placing sigils, upon activation additionally spawns a Black Powder pentagram with the size of the made pentagram.
---	Apple!	Places an apple on each sigil that enemies prioritize targeting over Isaac.
---	Eye of Belial	Upon hitting an enemy, shoots 2 Eye of Belial eyes in the direction of slashing.
---	Jacob's Ladder	Isaac constantly emits electricity while slashing.
---	Ghost Pepper	After slashing through a sigil, fires a blue fire in a random direction.
---	Bird's Eye	After slashing through a sigil, fires a fire in a random direction.
---	Large Zit	While slashing shoots large zit shots from the sides that also leave white creep upon dying.
---	Backstabber	Applies the bleed status effect on hit.
---	Pop!	After slashing through a sigil, creates a line of eyes on the end of the last sigil increasing in size with each sigil slashed, forming billard balls formation and pushing it in the end, playing a corresponding sound when the full combo is completed.
---	Haemolacria	After slashing through a sigil, leaves Haemolacria's burst of tears behind.
---	Trisagion	Tears travel between linked sigils.
---	Mucormycosis	Sigils have mushrooms placed on them. Slashing through sigils makes mucormycosis tear effect, farting and spreading muco tears.
---	Playdough Cookie	Sigil has a chance to spawn with a flame on top of it. After slashing through a sigil, shoots some Playdough Cookie tears that leave Mysterious Liquid, Number One, or Large Zit creep upon dying. Slashing leaves random effects behind that include fire jets, fart smokes, or light beams.
---	Terra	After slashing through a sigil, leaves a circle of shockwaves behind that increases in size with each sigil crossed.
---	Jupiter	After slashing through a sigil, leaves a fart behind. Slashing leaves a horrendous thick trail of fart smoke behind.
---	Ocular Rift	Rifts will occasionally appear on sigils for brief periods.
---	Wiggle Worm	Sigil links take the moving appearance of Wiggle Worm and try to home in on enemies.
---	Ouroboros Worm	Sigil links take the moving appearance of Ouroboros Worm and try to home in on enemies.
---	Rainbow Worm	Sigil links take the moving appearance of the current effect given by Rainbow Worm.
---	Parasitoid	After slashing through a sigil, has a chance to spawn two Blue Flies or a Blue Spider if an enemy was hit. Amount of flies/spiders depends on the amount of enemies hit and luck (see Parasitoid).
---	Guppy	After slashing through a sigil, there is a 50% chance to spawn a Blue Fly behind if an enemy was hit. Amount of flies depends on the amount of enemies hit.
Fiend Folio	Peppermint	Upon spawning a sigil Isaac fires a freezing flame in the opposite direction of moving. After slashing through a sigil, fires a freezing flame in a random direction.
Fiend Folio	Excelsior	After slashing through a sigil, fires two Excelsior rockets.
Fiend Folio	Emoji Glasses	All sigils become emoji, behaving like emoji tears.
Revelations	Burning Bush	Slashing leaves a thick blaze trail behind.