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How to Beat Marilith


Marilith on B5 of Mount Gulg, guarding the Fire Crystal.

Introduction

Marilith is the second of the Four Fiends in Final Fantasy 1 Pixel Remaster, a six-armed serpentine warrior waiting on B5 of Mount Gulg. Beat the Lich at the Cavern of Earth and the path opens up to Crescent Lake; Mount Gulg is the next dungeon, a five-floor volcano that drops you straight into her chamber at the bottom.

She is the first single boss in the game whose physical pressure is the actual headline. Marilith hits six times per turn at 40 Attack per swing, the highest sustained physical output you’ll have faced by a long stretch. She has no exploitable weakness, and her 183 Magic Evasion turns most offensive spells into misses, so the fight is won and lost on durable armor, healing tempo, and stacked physical buffs. Pick up the Ice Brand and Flame Mail from Mount Gulg’s chests on the way down before stepping into her room; both transform the fight from punishing to manageable.

A few numbers worth flagging. Hits per turn: 6 is the headline, with each swing rolling independently and the total pouring into a single party member without Flame Mail or Protera up. Magic Evasion 183 is the highest you’ve faced; offensive spells are a coin flip at best, and she resists Fire and Lightning on top of that. Magic Defense 0 keeps the rare connecting spell at full damage, but with no exploitable weakness there’s nothing efficient to cast at her. Defense 50 is the highest physical absorption to date, so unbuffed melee chip is slow. Almost entirely status-vulnerable despite the rest of the resist sheet: she’s immune only to Poison and Stone, which opens the door for a long-shot Sleep play (see Strategy below). Drop rate: 3% but no actual drops listed, so the bucket is wasted. Total rewards: 2,475 EXP and 3,000 Gil.

Strategy

Quick Tips

  • Equip Flame Mail and Protera

    Six hits per turn at 40 Attack will gut a soft party. Flame Mail also halves her Fira chip damage as a bonus.

  • Stack Haste and Temper

    Defense 50 makes raw swings sluggish. Two Tempers on a Hasted Warrior with the Ice Brand drops her in 4-5 rounds.

  • Sleep is worth a shot

    She is not immune. Magic Evasion 183 makes it whiff often, but a single connection locks her out entirely.

  • Skip offensive magic

    Resists Fire and Lightning, no weakness, and Magic Evasion 183. Even Thundaga barely scratches.

  • Curaga every turn

    Don't try to be efficient with healing. Six-hit physicals are the dominant chip threat; reset HP every round.

To beat Marilith in FF1, the play is to weather the six-hit physicals through Flame Mail and Protera, while a Hasted, Tempered Warrior with the Ice Brand chips through her 50 Defense. Your White Mage stays on Curaga every turn; this is not a fight where you save MP. Black Mage casts Haste turn one on whoever swings hardest, then Temper stacks for the rest of the encounter. With 1,440 HP and a Hasted dual-Tempered melee carry doing the work, the fight ends in 4-5 rounds.

The most surprising thing in Marilith’s data is how vulnerable she is to status. She’s immune only to Poison and Stone, which means Sleep, Hold, Slow, Silence, and Dark can all roll a hit on her. Magic Evasion 183 is brutal and most casts will whiff, but Sleep is worth attempting if your party is in trouble: a connecting Sleep effectively skips her turns until she wakes, and that means no Fira, no Hold, no six-hit physical. The cast is cheap on MP and the upside is enormous. Don’t lead the fight with it, but in a stalled round it can save the run.

Skip every other offensive spell. She resists Fire, Lightning, Poison, Stone, Time, and Mind, and her Magic Evasion knocks the rest off the board. Your Black Mage’s MP is much better spent on Haste and Temper, or rolled into the Sleep gamble. Watch for Hold in her rotation; it can paralyze a single member, and if your healer goes down for several rounds, the six-hit physicals quickly become a wipe. Keep a backup healer (Red Mage or a character with stocked Hi-Potions) on call.

Move Set

Marilith has a tight 4-move table; almost half her turns are the punishing physical:

ActionEffectChance
FightSix 40-Attack hits in one turn42.9%
FiraSingle-target fire damage28.6%
HoldSingle-target paralysis14.3%
DarkSingle-target accuracy debuff14.3%

The 43% basic Fight is the dominant threat: each of her six swings rolls separately and the total piles onto one party member per Fight turn. Fira chip-damages on top of that, so Curaga every turn is the baseline. The status block (Hold + Dark) only hits 28% combined and Dark is mostly cosmetic against your front line; Hold is the genuine concern if it lands on your White Mage.

Battle Plan

  • Black Mage: Haste turn one (on Warrior or Monk), Temper every turn after. Sleep gamble if the party stalls.
  • White Mage: Protera turn one if you have it, then Curaga every single turn. Don’t try to be efficient.
  • Warrior: Equip the Ice Brand and Flame Mail before the fight. Attack every turn once Hasted.
  • Monk / Thief / Red Mage: Attack every turn for supplemental damage. A bare-handed Monk at this level still chips meaningfully.
Trading blows with Marilith on B5 of Mount Gulg.

After the Battle

The Fire Crystal’s light is restored the moment Marilith falls, and a portal appears to lift you out of Mount Gulg. A story trophy unlocks alongside it.

Rest at Crescent Lake’s Inn before continuing. The chapter walkthrough picks up the route from here.

Crescent Lake & Mount Gulg Walkthrough →