Shadow Monarch

The Shadow Monarch is the current meta’s top weapon in Sailor Piece, classified as an S+ Tier Mythical Sword. It boasts the highest damage output in the game, massive AoE coverage, excellent invincibility frames (iFrames), and strong crowd control, dominating both PvP and boss farming scenarios.

How to Obtain

Shadow Monarch requires a multi-step progression chain:

Purchase Jinwoo Sword from Jinwoo Trainer on Sailor Island (costs 2,500,000 Money)
Farm Jinwoo Boss to obtain a Monarch Core drop
Defeat Shadow Monarch Boss in Double Dungeon (Boss Island)
Visit Shadow Monarch Trainer at Dungeon Island rooftop (left corner) to complete the upgrade

Abilities

Move	Key	Description
Shadow Army Strike	F	Powerful finisher move with massive AoE; unlocked via mastery questline with 30% damage buff

Stats

Stat	Value
Rarity	Mythical
Base Damage	999
Attack Speed	Medium
Mastery Required	999
Tier	S+
AoE	Massive
iFrames	Excellent
Crowd Control	Strong

Strengths

Highest damage output among all swords in the game
Extensive area-of-effect coverage for farming and PvP
Superior invincibility frame mechanics for survivability
Significant crowd control effects
Dominates both PvP and boss farming scenarios

Weaknesses

Extended acquisition timeline requiring multiple progression steps
Substantial upfront monetary investment (2,500,000 Money for Jinwoo)
High mastery threshold (999) needed for full effectiveness
Monarch Core drop from Jinwoo boss is RNG-dependent

Recommended Build Pairings

Fruits: Dragon Fruit (S+), Fiend Fruit (S+), Light Fruit (S), Quake Fruit (S)
Races: SwordBlessed (S+, +20% Sword DMG), Galevorn (S+), Slime (S), Warlord (S+)
Melee Specs: Strongest Shinobi (S+), Gilgamesh (S+)

Combat Tips

Time attacks between enemy ability animations for optimal damage windows
Initiate PvP engagements with Shadow Army Strike for burst advantage
Position centrally against mob clusters to maximize AoE coverage
Pair with Armament and Conqueror Haki for maximum damage output