Macuahuitl

You have a +1 bonus to attack and damage rolls made with this longsword, which is made of laminated wood, and inset with jagged teeth of obsidian. It deals an extra 2d6 damage to any creature of the plant type.

Versatile: This weapon can be used with one or two hands. A damage value in parentheses appears with the property—the damage when the weapon is used with two hands to make a melee attack.

Proficiency: martial, longsword Source: Tales from the Yawning Portal p. 70