You have trained extensively with one specific weapon, gaining the following benefits:

• Increase your Strength or Dexterity by 1 not to exceed a maximum of 20.
• Choose a weapon you have Expertise with that weapon. This upgrades de damage dice with this weapon one level: 1d4->1d6->1d8->1d10->1d12->2d6
• You have improved critical strike with this weapon, critical is increased by 1