Bygone Days Yi Sang

“	▶️ This is a portrait of theirs. Will you observe… a little closer?	”
–Yi Sang, Bygone Days

Bygone Days Yi Sang

Switch to Corrosion

Info
Risk Level			Season	Season 4 - Clear All Cathy
Affinity			Release	2024.04.04
Abnormality	Portrait of a Certain Day		Obtained	Battle Pass - Level 40 (Paid)

Cost
Sanity	15
E.G.O Resources	x3 x3

Resistances
Normal [x1]	Fatal [x2]	Normal [x1]	Normal [x1]	Endure [x0.75]	Fatal [x2]	Normal [x1]

Skills

15 + 8

Bygone Days 60 (60+0) Atk Weight ⯀⯀⯀ [After Attack] Randomly inflict (6 + (Gloom Reson. x1.5)) Sinking SinkingThe next Y time(s) the unit is hit, take X fixed SP damage. (Units with no Sanity take Gloom damage.) between targets [On Hit] If target has 6+ Sinking SinkingThe next Y time(s) the unit is hit, take X fixed SP damage. (Units with no Sanity take Gloom damage.), inflict 2 Bind BindSpeed -X for this turn. next turn

Passives

Fractured Yesterday

If the target has 6+ Sinking SinkingThe next Y time(s) the unit is hit, take X fixed SP damage. (Units with no Sanity take Gloom damage.) Potency, Clash Power +1
If the target has 4+ Sinking SinkingThe next Y time(s) the unit is hit, take X fixed SP damage. (Units with no Sanity take Gloom damage.) Count, Clash Power +1

“	▶️ Leave at once, interloper! Leave this place…!	”
–Yi Sang, Bygone Days

Bygone Days Yi Sang

Switch to Awakening

Info
Risk Level			Season	Season 4 - Clear All Cathy
Affinity			Release	2024.04.04
Abnormality	Portrait of a Certain Day		Obtained	Battle Pass - Level 40 (Paid)

Cost
Sanity	15
E.G.O Resources	x3 x3
Cost (Overclock)
Sanity	23
E.G.O Resources	x5 x5

Resistances
Normal [x1]	Fatal [x2]	Normal [x1]	Normal [x1]	Endure [x0.75]	Fatal [x2]	Normal [x1]

Skills

22 - 6

Bygone Days 60 (60+0) Atk Weight ⯀⯀⯀ [Indiscriminate] Targets Randomly [Before Attack] At 3+ (Gloom Reson.), Atk Weight +1 [Before Attack] At 5+ (Gloom Reson.), additional Atk Weight +1 [On Hit] Inflict 2 Sinking SinkingThe next Y time(s) the unit is hit, take X fixed SP damage. (Units with no Sanity take Gloom damage.). Inflict 2 Bind BindSpeed -X for this turn. next turn [On Hit] If target has 6+ Sinking SinkingThe next Y time(s) the unit is hit, take X fixed SP damage. (Units with no Sanity take Gloom damage.), inflict 2 Bind BindSpeed -X for this turn. next turn

Passives

Fractured Yesterday

If the target has 6+ Sinking SinkingThe next Y time(s) the unit is hit, take X fixed SP damage. (Units with no Sanity take Gloom damage.) Potency, Clash Power +1
If the target has 4+ Sinking SinkingThe next Y time(s) the unit is hit, take X fixed SP damage. (Units with no Sanity take Gloom damage.) Count, Clash Power +1

Threadspin

Threadspin Info
E.G.O Awakening Upgraded
	Atk Weight: 1 > 3 Coin Effects: [On Hit] If target has 6+ Sinking SinkingThe next Y time(s) the unit is hit, take X fixed SP damage. (Units with no Sanity take Gloom damage.), inflict 1 > 2 Bind BindSpeed -X for this turn. next turn
	Skill Effects: [After Attack] Randomly inflict (6 + (Gloom Reson. x1.5)) Sinking SinkingThe next Y time(s) the unit is hit, take X fixed SP damage. (Units with no Sanity take Gloom damage.) between targets
E.G.O Corrosion Upgraded
	Atk Weight: 1 > 3 Skill Effects: [Before Attack] At 3+ (Gloom Reson.), Atk Weight +1
	Skill Effects: [Before Attack] At 5+ (Gloom Reson.), additional Atk Weight +1 Coin Effects: [On Hit] If target has 6+ Sinking SinkingThe next Y time(s) the unit is hit, take X fixed SP damage. (Units with no Sanity take Gloom damage.), inflict 1 > 2 Bind BindSpeed -X for this turn. next turn
Note: E.G.O Passives are unlocked at Threadspin Tier II+.

Gallery

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  Idle Sprite
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  A Frame in the Skill Animation
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  Idle Animation (Corrosion)
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  Idle (Corrosion)
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  Moving (Corrosion)
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  Hurt (Corrosion)

• Acquisition Video