Path of the Ravager

Some barbarians in Arcane Space choose to travel into
unknown regions, to the edges of the known, those who
return are not quite the same. The endless darkenss of the
void can consume the soul of a man leaving only a husk left
to travel the spaceways, full of darkeness and rage.
Barbarians that follow this path succumb to the
emptiness of the void and channel its nothingness into
mindless rage.

Stale the Air

Starting at 3rd level, the void within you expands when you
rage. An area around you out to 10 feet becomes stale air
for the duration of your are rage. All attack rolls made by
creatures in stale air that need to breath, recieve a -2
penalty.
This area extends to 30 feet when you reach 14th level.

Breathless

Starting at 3rd level of this path, you no longer need to breathe.

Savagery

Beginning at 6th level, your bloodlust allows you to
perform awe inspiring feats of carnage. When you score a
critical hit on a creature, or you reduce a creature to 0 hit
points, you may make one additional attack against a
creature within 10 feet of you.

Call of the void

At 10th level, you gain the ability to pass through the
barriers that hold back the void. As an action, you can cast
the create portal spell.
After you cast the spell in this way, you can not do so
again until you finish a short or long rest.

Retaliation of the breathless

Starting at 14th level, you learn to release some of the void
that fills you when you are struck. When you are hit by a
creature with 5 feet of you, you can use your reaction to
force that creature to make a Constitution saving throw.
(DC = 8 + your proficiency bonus + your Constitution
modifier) On a failed save, the creature becomes
incapacitated until the end of your next turn.