Verin's Rapier of Swashbuckling grants you Duel.
DUEL
Once you take your 3rd step, when wielding the rapier, you gain a +1 bonus to hit on your turn when you attack a creature you inflicted damage on with the same weapon on your turn in the previous round.
Also, choose Resilient or Oathsworn.
RESILIENT
Health Pool: d10 (6)
You gain proficiency with heavy armor. In addition, you have a limited well of stamina that you draw on to protect yourself. When you suffer damage or take the Withdraw action, you can use a reaction to replenish your health pool by a number of drops equal to 1d10 + your steps. Once you use this feature, you must finish a short or long rest before you can use it again.
OATHSWORN
Health Pool: d10 (6)
You gain proficiency with heavy armor. In addition, the strength of your convictions gives you power. You gain two 1st-level spell slots and learn one 1st-level spell. Choose from among Intelligence, Wisdom, or Presence. This is your spellcasting ability.
In addition, choose between radiant or necrotic. When you hit a creature with a reach weapon attack, you can expend one spell slot to inflict your chosen damage type to the target, in addition to the weapon’s damage. The extra damage is 2d8 for a 1st-level spell slot, plus 1d8 for each spell level higher than 1st, to a maximum of 5d8. The damage increases by 1d8 if the target is an undead or a fiend.