Three Mythical swords define the entire back half of Sailor Piece progression — Shadow, Yamato and Atomic. They are not just three strong weapons that happen to sit at the top of the tier list; they form a deliberate, interconnected upgrade chain, and understanding exactly how they connect can save you from wasting a long grind on the wrong blade. This complete head-to-head compares all three across damage, moveset, requirements and obtainment, so you can confidently pick the right one for your current stage of the game.
1Shadow — The Mid-Game Anchor
Shadow was the very first sword in Sailor Piece to feature an F move, and it remains a beautifully balanced blade — strong burst, reliable sustained damage, and a moveset that handles both crowds and bosses without obvious weakness. It requires the Shadowborn race to wield. But the single most important fact about Shadow is structural: it doubles as a required crafting material for Atomic. That means the Shadow grind is never a side quest or a detour — it is, quite literally, the first half of your endgame.
2Yamato vs Atomic — The Endgame Choice
Yamato is the sustained-damage specialist. Its moveset is built to pump consistent, focused damage into a single target, which makes it the premier pick for long boss fights, raids and World Boss encounters. It requires the Swordblessed race and the Blade Sovereign title. Atomic, by contrast, is the endgame all-rounder — crafted using the Shadow sword as its base, it delivers enormous area-of-effect burst and is widely regarded as the fully upgraded form of Shadow.
The verdict depends entirely on how you play. If you are a dedicated boss and raid player, Yamato's concentrated single-target damage genuinely wins — it kills one fat health bar faster. If you want a single weapon that clears everything in front of you, from mob packs to bosses to gamemode waves, Atomic is the answer and the safer all-purpose pick for the majority of players.
3The Right Order to Get Them
- 1
Get Shadow first
It carries the mid-game and is a required material for Atomic — the grind counts twice.
- 2
Decide your playstyle
Boss-focused players craft Yamato next; all-round players go straight for Atomic.
- 3
Farm the boss for title and materials
Each Mythical needs a title and materials — farm the boss that drops both together.
- 4
Craft at the seller NPC
Hand over the title, race, sword and materials to claim your endgame blade.
Watch out
Never sell or discard your Shadow sword. Atomic requires Shadow as a crafting base — selling it forces you to re-grind the entire Shadow questline from zero.
Key takeaway
If you are mid-game, get Shadow first — it carries you now and becomes a material for Atomic later, so the grind counts twice over.
Frequently asked questions
Is Atomic better than Yamato?
For all-round clearing, yes. For pure single-target boss damage, Yamato is genuinely competitive.
Do I need Shadow to get Atomic?
Yes — the Shadow sword is a required crafting material for Atomic.
Which Mythical sword should I get first?
Shadow — it serves the mid-game and feeds directly into the Atomic craft.
What race does each sword need?
Shadow needs Shadowborn; Yamato needs Swordblessed plus the Blade Sovereign title.
Is Yamato worth it if I already have Atomic?
For dedicated boss and raid players, yes — Yamato's sustained single-target damage still has a real niche.
Can I use Sun God instead of Atomic?
Yes — Sun God is another S-tier Mythical sword and an excellent boss-damage alternative to Atomic.
How long does the Shadow-to-Atomic chain take?
It is a multi-session project, but because Shadow is both a usable sword and an Atomic material, no step is wasted.