Chaos Ranger | Counter:Side collaboration | explosive crit-based opener
Rosaria is a fast Chaos Ranger burst DPS who turns crits on her ultimate into Inferno stacks, then cashes those stacks into a lethal special.
Fast burst Ranger that turns crits into a lethal special while also giving the team AoE Defense Down.
Her entire kit is designed around a fast opener into a stacked special.
AoE hit, Defense Down on all enemies, and +50% action gauge.
Each crit target can add a stack, up to Inferno x3.
Inferno raises special damage and x3 adds a follow-up basic.
As Upheaval builds, basics keep feeding later burst cycles.
Use the safer crit-stable baseline first, then pivot into raw damage once Rosaria is already landing Inferno x3 reliably.
Safer progression buildPrimary sets
Insight (4pc) + Fighting Spirit (2pc) Best first stop when Crit Rate still needs help.Burst swap
Destruction (4pc) + Fighting Spirit (2pc) Once Crit Rate is already solved, this gives better special damage payoff.Priorities
Rosaria fits comfortably into safer PvE teams because her opener improves the entire team's damage.
Recommended team
Rosaria / Waltz Asherah / Emily / Bunny Charlotte 
Target Stats
Destruction Set / CRIT DMG Rosaria target tuned to maximize Crit Rate while keeping strong opener speed and useful Effect Hit.
Upgrade Path
Journey: Hard
Core line: Rosaria, Lacy, and Charlotte. Fill the flex slots with Bunny Frey or Bunny Claire, then Petra or Naru.
Rosaria Lead 
Lacy Core 
Bunny Frey Flex A 
Bunny Claire Flex A 
Charlotte Core 
Petra Flex B 
Naru Flex B Skill Cards
Passive
More Inferno generation after basics as Upheaval climbs, plus a one-time 40% HP floor that grants Attack Up.
Basic
Single-target elemental hit that grants 1 stack of Upheaval.
Special
Consumes Inferno for burst damage. Inferno x3 adds an extra Ashen Flame follow-up.
Ultimate
AoE Defense Down, +50% action gauge, Lord of the Throne, and up to 3 Inferno based on crit targets.
