Leader of the original Forest Guard, Rosetta has been taken in by Babylonia, designated as a special unit, and redeployed onto the battlefield in a more humanoid form.
· Rank: S-Rank
· Class: Tank
· Element: Physical (100%)
Information
Leader of the original Forest Guard, Rosetta has been taken in by Babylonia, designated as a special unit, and redeployed onto the battlefield in a more humanoid form.
Speciality
Defense Down - Able to reduce Physical Defense of enemies. Burst - Energy spheres provide great burst potential.
A list of recommended builds for Rosetta: Rigor can be found here. Each tab represents one build — click the tabs below to view each one. See here for more information about Ultima Awakening and resonance slots.
Used to defeat Musashi IX and Unknown Construct Alpha as a solo DPS whenever you need to use the Core Passive shot to finish the fight
Class Passive Resonance is slightly worse than Ex — Precision Attack (ATK +15, CRIT +15) in the Bottom Resonance Slot
Can also be used for general content in the A2 / Rosetta: Rigor / 9S team
Weapon Resonance ◇ Rosetta: Rigor
Recommended 6★ weapon resonances for Rosetta: Rigor can be found here listed in order of priority.
1. Polymerization Collapse
When physical damage is dealt, it will produce Smash effect. Smash: reduces the target's physical type resistance by 8% for 8s. Repeat trigger to refresh duration.
2. Dead Line Timing
Gain 2 extra random signal orbs when come out, and 3 same signal orbs every 45s (also can gain signal orbs during background operation).
3. Matrix Lightning
After EX Dodge (triggering Matrix), Movement Speed is greatly increased and all enemies' Extra DMG Reduction is decreased by 10% in Matrix.
4. Resonant Echo
The effect duration caused by Tank class skill increases to 8s.
5. Boudary's Annihilation
On QTE, shields targets in play for 10% of the unleasher's max HP for 5s.
Priority
HIGH:
Polymerization Collapse
Dead Line Timing
MEDIUM:
Matrix Lightning
Resonant Echo
LOW:
Boudary's Annihilation
Notes
Minimum recommended amount: 2
Matrix Lightning and Resonant Echo are equipped depending on the situation
Boudary's Annihilation is mainly equipped in Phantom Pain Cage to keep 100% HP for the highest possible score
Skills & Passives
Red Orb
Frozen Wind
Throws 3 shockwaves forward, dealing 222% / 444% / 666% Physical DMG 3 times based on the number of orbs pinged.
Yellow Orb
Inver-Chariot
Rosetta smashes an enemy with her shield, then thrusts her lance foward, dealing 220% / 440% / 660% Physical DMG twice based on the number of orbs pinged and gaining a shield equal to 3% / 6% / 10% of maximum HP for 5s. Gains Super Armor while using this skill.
Blue Orb
Hunter of Sin
Automatically uses a 3-Ping version of this attack upon switch-in. Throws a shield to drag an enemy closer, dealing 220% / 440% / 660% Physical DMG based on the number of orbs pinged and inflicting Lance of Perception for 8s. Lance of Perception: Target's Physical DEF decreases by 20%.
Basic Attack
Swift Strike
Basic Attack: Rosetta strikes the enemy with her lance and shield, dealing 950% Physical DMG in total. Tap and hold basic attack to build up her power. Based on the charging time, she will fire low/mid-power electromagnetic cannon that deals 200% / 370% Physical DMG. Extra DMG Reduction increases by 30% while charging up.
Signature
Signature - Absolving Spear
Signature Move: Costs 80 Energy. Rosetta rises into the air and aims her ion cannon towards the ground. While charging up energy, nearby enemies will be dragged in and damaged. Once the cannon is fully charged, it fires a large area of effect blast that deals 2480% Physical DMG in total.
QTE
Wings of Destiny
QTE: Rosetta spins with her lance, dealing 720% Physical DMG to nearby enemies.
Class
Tank
Attacks lower the target's Extra DMG Reduction by 20% for 5 seconds.
Awakening
Ultima Awaken
Gains 3 Signal Orbs when entering battle.
Core
Valkyrie Heart
Core Passive: Rosetta has 3 energy points. When performing a 3-Ping, 1 energy point is consumed to enhance the skill and provide her with 100% DMG Bonus. When performing a Signature, she consumes up to 2 energy points to gain 40%/80% DMG Bonus based on the points consumed. When all energy is used up, Rosetta enters Full Burst form. Press and hold the Basic Attack button in this form to charge and fire the wide-area electromagnetic cannon once the charging reaches maximum, dealing 1600% Physical DMG while restoring 8 energy, and inflicting the target with Lance of Perception for 20s. While charging, her Extra DMG Reduction increases by 90%. 3 energy points will be restored in 8s after firing the wide-area electromagnetic beam.
Leader
Mutual Succor
All members' DEF and DMG dealt by the Tank-type increases by 15% and 5% respectively.
SS-Rank
Lance of Redemption
Passive: QTE inflicts Lance of Perception for 8s. After hitting an enemy with a Red Orb skill, Extra DMG Bonus against this enemy increases by 10% for 8s.
SSS-Rank
Lance of Eternity
Passive: Physical DEF Reduction of Lance of Perception increases by 20%.
SSS+ Rank
Hyper-Burst
Passive: 3-Ping and Signature Move DMG increases by 20%.
Level 9: Wings of Destiny pulls in nearby enemies. Level 18: Wings of Destiny grants 15 Energy. Lance of Redemption added effect: Increases Extra DMG Bonus by 10% for 8s after hitting an enemy with Hunter of Sin. (This effect does not stack with the Extra DMG Bonus from hitting an enemy with Frozen Wind.)
Core Ascension
Freezing Surge
Increases the base DMG of wide-area electromagnetic cannon by 15%.
Level 9: Wide-area electromagnetic cannon pulls in nearby enemies. After using Absolving Spear, increases the base DMG of low/mid-power electromagnetic cannons by 100%. Level 18: Gain 3 Energy after firing a low/mid-power/wide-area electromagnetic cannon. After firing a wide-area electromagnetic cannon, Rosetta will become Overloaded for 4s. During this time, all 3-pings and Signature Move receive the maximum energy point DMG Bonus. Lance of Eternity added effect: Lance of Perception includes an additional Fulcrum Penetration effect that reduces the target’s Physical resistance by 5%.
Signature Ascension
Sin-Eradicating Spear
Increases the base DMG of Absolving Spear by 15% and activates all available QTEs when used.
Level 9: Gain 10 Energy when entering battle. Level 18: When Absolving Spear is used, hold Basic Attack to begin charging. Based on the charging time and whether Rosetta is in Full Burst form, Rosetta will fire a low/mid-power/wide-area electromagnetic cannon. Rosetta is invincible during this time. Hyper Burst added effect: Increases the Physical DEF reduction of Fulcrum Penetration by 10%.
Physical (100%)
Hunter of Sin by 
Frozen Wind.)
Absolving Spear, increases the base DMG of 
