As a bonus action, Rus can expend one superiority die to bolster an ally within 60 feet. The ally gains temporary hit points equal to the superiority die roll plus 5.

As a bonus action, Rus can direct an ally who can see or hear him to use its reaction to make one weapon attack. Rus expends one superiority die, and the ally adds the die to the attack's damage.

Rus can use a bonus action to regain 1d10 + 12 hit points. He must finish a short or long rest before using this feature again.

When Rus hits a creature with a weapon attack, he can expend one superiority die to attempt to disarm the target. The target makes a DC 17 Strength saving throw. On a failure, it drops one held item, and Rus adds the die to the damage roll.

When Rus hits a creature with a weapon attack, he can expend one superiority die to frighten the target. The target makes a DC 17 Wisdom saving throw. On a failure, it is frightened of Rus until the end of his next turn, and Rus adds the die to the damage roll.

When Rus makes a weapon attack roll, he can expend one superiority die to add it to the roll, potentially turning a miss into a hit.

When a creature misses Rus with a melee attack, he can use his reaction and expend one superiority die to make a melee weapon attack against it. On a hit, he adds the die to the attack's damage.

When Rus hits a creature with a weapon attack, he can expend one superiority die to force a Strength saving throw. On a failure, the target falls prone, and Rus adds the die to the damage roll.

Rus adopts the Defense fighting style. While wearing armor, he gains a +1 bonus to AC.

Rus can take one additional action on his turn. He must finish a short or long rest before using this feature again.

Rus chooses the Battle Master archetype. He gains superiority dice, combat maneuvers, and a tool proficiency from Student of War.

Rus gains four Ability Score Improvements or feats at fighter levels 4, 6, 8, and 12. His chosen improvements are reflected in his ability scores and feats.

Rus gains an additional attack whenever he takes the Attack action, for a total of three attacks with that action.

Rus gains an additional Ability Score Improvement or feat.

Rus learns two additional Battle Master maneuvers, and his superiority dice become d10s. He also gains proficiency with carpenter's tools through Student of War.

Rus gains an additional Ability Score Improvement or feat.

Rus can reroll a failed saving throw. He can use this feature once, then regains its use after a long rest. At fighter level 13, he would gain a second use, but he is not yet that level.

Rus learns two additional Battle Master maneuvers.

Rus gains an additional attack whenever he takes the Attack action, for a total of three attacks with that action.

Rus gains an additional Ability Score Improvement or feat.

Rus has five d10 superiority dice. He regains all expended dice after a short or long rest. His maneuver save DC is 17.

Rus knows seven Battle Master maneuvers: Commander's Strike, Disarming Attack, Menacing Attack, Precision Attack, Rally, Riposte, and Trip Attack.

Rus has proficiency with carpenter's tools, gained through his Battle Master training and former profession.

Rus is a respected member of the local carpenters' guild. Guild halls provide lodging and food when available, fellow guild members offer support, and the guild can help resolve professional or commercial disputes. He must pay guild dues and abide by guild rules.