She can catch her breath in the middle of a hard day. As a bonus action, she can regain hit points and can use the feature multiple times per day as allowed by fighter progression.

Her alley fighting style lets her make unarmed strikes as a bonus action while fighting barehanded or with pugilist weapons, and her unarmed strikes and pugilist weapons use a 1d8 Fisticuffs die instead of normal damage.

She can spend moxie to make two unarmed strikes as a bonus action, turning a clinch into a barrage.

She can use a bonus action to push deep through pain, gaining resistance to bludgeoning, piercing, and slashing damage and ignoring exhaustion below level 6 for 10 minutes.

A brutal close-range strike that uses her Fisticuffs die and can be combined with a grapple or shove attempt.

She spend moxie to maximize damage on a successful hit, then regain the expended point.

She braces behind raw toughness and temporary hit points, making herself harder to stop.

She lunges, punches, and disengages or dashes to keep enemies from pinning her down.

She can bully the battlefield by forcing disadvantage on a target's resistance to her grapple or shove.

Vivian has the fighter's core martial training and discipline, granting proficiency with all armor, shields, and martial weapons, and a d10 Hit Die.

She has trained with weapon groups and can apply mastery techniques to weapons she is proficient with, reflecting expert battlefield handling.

She chooses a fighting style that improves her combat approach. For Vivian, this supports her unarmed and close-quarters brawling focus.

She can think tactically under pressure. When she makes an ability check, she can add a Tactical Mind style boost by expending a use of Second Wind, helping her push failed physical or mental checks over the line.

At this level and later fighter improvement levels, she can take feats or improve ability scores. Vivian's final scores already reflect her build target.

She can attack twice when she takes the Attack action.

She gains another fighter improvement and can further customize her combat style through feats or ability score adjustments.

She can use her battlefield awareness to reposition and keep pressure on foes without losing tempo.

She gains another fighter improvement.

She can refuse to fall apart under pressure. When a saving throw would matter most, she can push through using sheer grit and disciplined resolve.

Her wrestling training lets her dominate the clinch. While unarmed or wielding only pugilist weapons, wearing light or no armor, and not using a shield, her base AC equals 12 plus her Constitution modifier.

Her talent for using anything nearby as a weapon lets improvised weapons benefit from mastery properties, and all improvised weapons count as having the Sap property for her.

She has moxie points equal to her pugilist level, which fuel special brawling techniques and refresh on a short or long rest.

When damaged, she can use her reaction to regain all expended moxie points. If she is bloodied, she also gains temporary hit points equal to four times her pugilist level. This can be used only once per rest cycle.

When she fails a Strength, Dexterity, Constitution, or Charisma check, she can spend moxie to add her Fisticuffs die to the roll. If the check still fails, the moxie is refunded and the feature cannot be used again until she rests.

She specializes in submission wrestling, dealing automatic bludgeoning damage to creatures she has grappled at the start of her turn, using compression locks and arm control.

She is proficient in Athletics and uses it with expert-level skill, representing her grappling and physical dominance.

She can attack twice instead of once whenever she takes the Attack action.

Her unarmed strikes and improvised weapon attacks can deal force damage instead of their normal damage type if she chooses.

When she is bloodied and uses Bloodied But Unbowed, she can add a damage bonus to unarmed strikes and pugilist weapons based on her Constitution modifier and exhaustion levels for 1 minute.

Once per turn when she hits with an unarmed strike or pugilist weapon, she can deal extra damage. She can instead trade that damage to impose a debuff, such as making the creature easier to finish off or forcing it to focus on her.

She is incredibly strong for purposes of lifting and carrying, her jump distance is doubled, and unarmed strikes can critically damage objects.

At the start of each turn, she can shake off exhaustion or certain debilitating conditions, showing absurd toughness and discipline.

When grappling or shoving, she counts as one size larger, and she can move creatures she grapples without extra movement if they are her size or smaller.

She can warp momentum with psychic force, adding telekinetic pressure to a hit, forcing movement, or shoving enemies off balance.

She can shield herself and her allies with a force barrier, reducing damage taken by herself or a nearby creature.

She can move objects and creatures with a burst of telekinetic force, using her mind to reposition battlefield threats.

Her psionic energy becomes stronger and harder to resist, improving the potency of her psychic battlefield control.

Her psionic techniques become refined and devastating, giving her greater control over mobility, defense, and impact in combat.

Her mind and body now operate as one brutal instrument, making her a terrifying master of close-range control and psychic pressure.

She gains the fighter capstone of relentlessly overwhelming offense, allowing one more attack when she takes the Attack action.

Vivian has a reliable underworld contact network. She can get word to fences, informants, smugglers, and other criminals who owe her favors or fear her name. She knows how to find illegal work, safe houses, false papers, and discreet exits when the law is closing in.