Deathbringer

You are an unrelenting force of destruction as you deal death with every blow. You gain the following benefits.

• When you take the Attack action, you may make an additional weapon attack as a part of that action, in addition to any other attacks you would normally make.
• When you hit a creature with a challenge rating of 5 or lower with a weapon attack, it is instantly slain unless you choose to not slay it.
• You always know exactly how many creatures you have killed.