Amistad (Chain of the Ancestral Barbarian)

You have a +2 bonus to attack and damage rolls made with this magic weapon.

Your hit point maximum increases by 2 for each level you have attained.

This weapon can shift between two forms, A Great Axe, and a Great Sword, regardless of form the weapon deals 2d6 slashing damage. The form can only be changed over the course of a short rest.

This axe has a long smooth brass metal hilt, with a wicked massive blade of the same material. There is glowing gem at the base of the hilt, that lets off a soft glow. The hilt is wrapped in finely made bronze chains that magically attach to the wearer.

The Great sword Mirrors the design of the axe. 

When you are raging while attuned to this axe, as a bonus action you can make a war cry to bolster your allies within 30ft of you. When you use this ability, extend your rage modifier to all allies damage rolls until your rage ends. You can not use this ability again until you have completed a long rest

A long metal chain is connects you to the weapon, you can substitute one of your attack actions to make a ranged weapon attack at disadvantage with this weapon at any creature within 30ft.  You can choose to leave the weapon embedded within the creature (medium size or larger), make another ranged weapon attack at disadvantage, or use one of your attack actions to pull the weapon back. While lodged in a creature, you can make an Athletics check (DC 12) to try and retrieve the attached weapon, or make a contested Athletics check to pull your self to the creature/pull the creature to you. 

The maximum range is 30ft

Proficiency with a Greatsword allows you to add your proficiency bonus to the attack roll for any attack you make with it.

Notes: Bonus: Magic, Bonus: Hit Points per Level, Barbarian, Damage, Combat, Heavy, Two-Handed, Graze