Path of the Symbiont

The symbionts are strange, mimic-like entities. Many
scholars believe they came from the Far Realm to Insectopia,
but why they do not know. Alone they are merely specks,
barely noticeable for most creatures. However, when they find
a worthy host, the symbionts unleash their true and terrifying
potential. Barbarians of the Path of the Symbiont draw their
power from a connection with exactly those alien creatures.
When entering a rage, the Symbiont takes over and turns the
barbarian into a violent bloodthirsty monster, wielding the
symbiont as a tangible weapon with deadly precision. The
symbiont hungers, and its primal fury affects it's host. A
symbiont may not always be evil, but with a need to feed and
an appetite for conflict, a benign host, much less symbiont, is
rare to find.

Symbiotic Blade

 

Eldritch Connection

 

Climbing

You gain a climbing speed equal to your walking speed, and you can climb difficult surfaces, including upside down on ceilings, without needing to make an ability check.

Jumping

When you jump, you can make a Strength (Athletics) check and extend your jump by a number of feet equal to the check’s total. You can make this special check only once per turn.

Swimming

You gain a swimming speed equal to your walking speed, and you can breathe underwater.

Assimilation

At 10th level, the bond with the symbiont slumbering inside
you grows even stronger, making you a master at pursuing
and slaying your prey. You can manifest your symbiotic
weapon as a bonus action while you aren't raging.

 

Additionally, whenever you finish a long rest, you can allow
your Symbiont to assimilate a magic weapon in your
possession. You can only assimilate a melee weapon you are
proficient with. Your symbiotic weapon gains any bonus to
attack and damage rolls and any properties of the assimilated
weapon, but maintains it's damage die. If the weapon
required attunement for any of its abilities, you can use them
as if you were attuned to it. You can only have one weapon
assimilated at a time. You can replace the assimilated
weapon with another whenever you finish a long rest.

Symbiotic Rage