Opportunist

You take advantage of openings in your opponent's defences. You gain the following benefits:

• When you take the Attack action to attack with a melee weapon, you can use a bonus action to make a weapon attack treating the weapon as an improvised weapon. This attack uses the same ability modifier as the primary attack. You are proficient with the weapon for this attack.
• When a creature within 5 feet of you makes an attack roll with disadvantage, you can use your reaction to make a melee weapon attack against that creature.