Mortenax Blade vs Sampo
Mortenax Blade vs Sampo — two Nihility characters competing for the same roster slot.
TL;DR — Quick Pick
Pick Mortenax Blade if…
- You need a Fire Nihility unit and Mortenax Blade's kit matches your account gap.
- You prefer Debuffer gameplay over Sampo's DoT DPS identity.
- Situational—Mortenax Blade is a Fire Nihility debuffer; pull for DoT/Break flex.
Pick Sampo if…
- You need a Wind Nihility unit and Sampo's kit matches your account gap.
- You prefer DoT DPS gameplay over Mortenax Blade's Debuffer identity.
- Situational—Sampo is a Wind Shear DoT piece.
Mortenax Blade and Sampo are both Nihility investments that answer different account needs. Mortenax Blade (Fire, Debuffer) shines when Situational—Mortenax Blade is a Fire Nihility debuffer; pull for DoT/Break flex.. 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
Strengths & Weaknesses
Mortenax Blade
- Ultimate “Fornax Ex Corpore” spends HP as a deliberate self-damage cost—level this before polishing filler traces.
- Skill “A Rain of Blades Seals Fate” spends HP as a deliberate self-damage cost—the rotation wants controlled self-damage, not panic healing that cancels the state.
- Talent “All Karma Comes Due” fires Follow-Up ATKs off ally Basics—damage keeps flowing even when Mortenax Blade is not the active turn.
- Follow-Ups from “All Karma Comes Due” need allies who actually Basic ATK on schedule—freeze/CC on the team stalls Mortenax Blade’s off-turn damage.
- HP-spend skills mean Mortenax Blade can soft-lock if sustain is weak or if a healer tops them up at the wrong time and breaks a low-HP / Charge condition.
- Spamming “A Rain of Blades Seals Fate” every turn without watching Skill Points strands the rest of the team—Mortenax Blade is often the SP sink.
Sampo
- 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.
- 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 Mortenax Blade
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 Mortenax Blade
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)
Light Cone
Reforged in Hellfire
Relics
Pioneer Diver of Dead Waters (4pc) + Pan-Cosmic Commercial Enterprise (2pc)
Body
Effect Hit Rate
Feet
SPD
Sphere
Fire DMG%
Rope
ATK%
Substats
EHR (to threshold) > SPD > ATK% / CRIT
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?
- You need a Fire Nihility unit and Mortenax Blade's kit matches your account gap.
- You prefer Debuffer gameplay over Sampo's DoT DPS identity.
- Situational—Mortenax Blade is a Fire Nihility debuffer; pull for DoT/Break flex.
- Ultimate “Fornax Ex Corpore” deploys a team Zone with RES PEN / Break-oriented amp.
- Ultimate “Fornax Ex Corpore” spends HP as a deliberate self-damage cost—level this before polishing filler traces.
- You need a Wind Nihility unit and Sampo's kit matches your account gap.
- You prefer DoT DPS gameplay over Mortenax Blade's Debuffer 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.