Theorylytics

Acheron vs Sampo

Acheron vs Sampo — two Nihility characters competing for the same roster slot.

TL;DR — Quick Pick

Pick Acheron if…

  • You need a Lightning Nihility unit and Acheron's kit matches your account gap.
  • You prefer Main DPS gameplay over Sampo's DoT DPS identity.
  • Yes for Nihility hypercarry—Acheron’s Ultimate still clears endgame.

Pick Sampo if…

  • You need a Wind Nihility unit and Sampo's kit matches your account gap.
  • You prefer DoT DPS gameplay over Acheron's Main DPS identity.
  • Situational—Sampo is a Wind Shear DoT piece.
Verdict

Acheron and Sampo are both Nihility investments that answer different account needs. Acheron (Lightning, Main DPS) shines when Yes for Nihility hypercarry—Acheron’s Ultimate still clears endgame.. Sampo (Wind, DoT DPS) is the better commit when Situational—Sampo is a Wind Shear DoT piece.. Compare signature builds, team requirements, and your existing supports before pulling either.

At a Glance

Acheron
Stat
Sampo
Lightning
Element
Wind
Nihility
Path
Nihility
5★Winner
Rarity
4★
Main DPS
Primary role
DoT DPS
MoC: A · PF: A · AS: AWinner
Endgame ratings
MoC: B · PF: B · AS: B
CRIT Rate ≥ CRIT DMG
Scaling focus
EHR (to threshold)
Lightning + NihilityWinner
Playstyle
Wind + Nihility
Moderate
Team flexibility
Moderate
Jiaoqiu / Pela / Aventurine
Best support shell
Huohuo / Tingyun / Pela
Good Night and Sleep Well — Best 4★ — stacks DMG vs debuffed enemies; aim for high s
F2P Light Cone
Good Night and Sleep Well — Accessible Nihility cone—superimpose when possible.Winner
Excellent
E0 viability
Excellent

Strengths & Weaknesses

Acheron

Strengths
  • Burst kit built around one Ultimate: Rainblades into Stygian Resurge clear packs while ignoring Toughness type and applying all-type RES shred for the whole sequence—so she stays viable even when Lightning is not on the weakness list.
  • Trace A4’s 1.6× personal damage multiplier (with two other Nihility allies) sits outside normal DMG% stacking, so her ceiling does not depend on borrowing Robin, Ruan Mei, or Sparkle from the other Memory of Chaos side.
  • Debuff teammates double as fuel—every ally application feeds Slashed Dream and Crimson Knot—so well-built Nihility cores keep Ultimates cycling in MoC and Pure Fiction without Energy-battery supports.
Weaknesses
  • Full A4 scaling wants three Nihility characters on the roster (E2 lowers that to two paths total); swapping in Harmony for the second Nihility slot only works with well-built supports and still forgoes part of her multiplier.
  • Most of her damage is booked into one Ultimate—Rainblades that remove too few Crimson Knot stacks, or hit the wrong enemy in multi-target fights, can waste the bulk of the rotation.
  • Basic ATK and Skill ratios are modest compared with many newer 3.x carries; she climbs tiers through debuff-fed stacking, type-agnostic break, and RES shred during Ult—not steady single-target Skill spam.

Sampo

Strengths
  • Ultimate “Surprise Present” hits the full field and forces DoT application/detonation in one cast—Pure Fiction waves melt once the status is seeded.
  • Skill “Ricochet Love” dumps a large single-target multiplier into one elite—that is how Sampo applies pressure between Ultimates.
  • Talent “Windtorn Dagger” rolls a base-chance debuff that wants Effect Hit Rate—miss the stack conditions and the burst window feels empty.
Weaknesses
  • Several Sampo effects roll “base chance”—without enough Effect Hit Rate, Exposed/Shock/DEF shred simply misses on tanky bosses and the rotation feels empty.
  • DoT damage needs other appliers or long-lived statuses on the field—Sampo alone cannot keep every wave fully stacked without a second DoT partner.
  • As a 4★ Nihility unit, Sampo is easy to gear for early/mid game but usually loses the niche race to a modern limited option once that banner is built.

Shared Team Members

With Acheron

Tingyun is the Advance / DMG amp — time their Skill/Ult for the carry’s damage window.

With Sampo

Tingyun is the Advance / DMG amp — time their Skill/Ult for the carry’s damage window.

With Acheron

Pela stacks shred / vulnerability the carry’s kit assumes every cycle.

With Sampo

Pela seeds or detonates DoTs — without a second DoT piece the detonation loop stalls.

With Acheron

Gallagher covers healing (and often Energy / cleanse) so the carry can stay on-curve.

With Sampo

Gallagher covers healing (and often Energy / cleanse) so the carry can stay on-curve.

Best Builds (Signature)

Acheron

Light Cone

Along the Passing Shore

Relics

Pioneer Diver of Dead Waters (4pc) + Izumo Gensei and Takama Divine Realm (2pc)

Body

CRIT Rate%

Feet

ATK%

Sphere

ATK% / Lightning DMG%

Rope

ATK%

Substats

CRIT Rate ≥ CRIT DMG > ATK% > SPD (only if using SPD-set tech)

Sampo

Light Cone

Incessant Rain

Relics

Pioneer Diver of Dead Waters (4pc) + Pan-Cosmic Commercial Enterprise (2pc)

Body

Effect Hit Rate

Feet

SPD

Sphere

Wind DMG%

Rope

ATK%

Substats

EHR (to threshold) > SPD > ATK% / CRIT

Who Should You Pull?

Acheron
Pull Acheron if…
  • You need a Lightning Nihility unit and Acheron's kit matches your account gap.
  • You prefer Main DPS gameplay over Sampo's DoT DPS identity.
  • Yes for Nihility hypercarry—Acheron’s Ultimate still clears endgame.
  • Ultimate “Slashed Dream Cries in Red” banks Slashed Dream / Crimson Knot toward a stacked Ultimate.
  • Acheron is a stronger general pull priority for your roster.
Acheron Full Guide
Sampo
Pull Sampo if…
  • You need a Wind Nihility unit and Sampo's kit matches your account gap.
  • You prefer DoT DPS gameplay over Acheron's Main DPS identity.
  • Situational—Sampo is a Wind Shear DoT piece.
  • Ultimate “Surprise Present” hits every enemy on the field in one cast.
  • Ultimate “Surprise Present” hits the full field and forces DoT application/detonation in one cast—Pure Fiction waves melt once the status is seeded.
Sampo Full Guide