In tradition, an olive branch is held by supplicants to show their status as such when approaching persons of power or in temples when supplicating the gods. In modern times, it is shown as an act of peace.

Vicious. When you roll a 20 on your attack roll with this magic weapon, the target takes an extra 7 damage of the weapon’s type.

Lucky. When you roll a 1 on your attack roll with this magic weapon, you can choose to reroll. 

Brilliant Glow. Yata's Olive branch does an additional 8 radiant damage

Eldritch Killer. Yata's Olive branch adds an additional 3 damage to the Edtritch Blast spell.

Glow and Throw. Immediately after a ranged attack, Yata's Olive Branch appears back in your hand.

Waterwalking. Yata's Olive Branch grants the ability to move across any liquid surface—such as water, acid, mud, snow, quicksand, or lava—as if it were harmless solid ground.

This Item grants an extra attunement slot.

 

A yklwa (pronounced YICK-ul-wah) is a simple melee weapon that is the traditional weapon of Chultan warriors. A yklwa consists of a 3-foot wooden shaft with a steel or stone blade up to 18 inches long. It costs 1 gp, and it deals 1d8 piercing damage on a hit. Although it has the thrown weapon property, the yklwa is not well balanced for throwing (range 10/30 ft.).

Notes: Damage: Additional, Eldritch Blast: Bonus Damage, Set: Attunement Slots, This Item grants an extra attunement slot., follower of Yata, Damage, Combat, Thrown