Path of Vengeful Nature

Barbarians who are infuriated by the destruction of nature around them seek this path, and they call upon nature to grant them powers to avenge the damage.

Spell Save DC

The spell save DC for spells that you cast with features from this subclass equals 8 + your proficiency bonus + (((your Strength score + your Wisdom score)/4)-5) Round up.

Infused Strike

When you choose this path, you gain the ability to infuse your strikes with nature's fury. When you enter your rage, you can immediately cast one of the following spells, requiring no spell slot, additional time, or components. Also, instead of needing to concentrate, the spell ends early if you exit rage.
  -Ensnaring Strike
  -Searing Smite
  -Thunderous Smite

Elemental Resistance

Starting at the 6th level, you have become resistant to nature's own weapons and can redirect them against your opponent. You gain the ability to innately cast Absorb Elements an unlimited number of times, but only while you are raging. 

Bestial Fury

Starting at 10th level, you can harness primal energies to grant yourself bestial properties. When you enter rage, you may immediately cast Guardian of Nature requiring no additional time, but you must choose the primal beast option. You do not need to concentrate on this spell, but it ends early when you exit rage. This feature can be used simultaneously with Infused Strike, and can be used one less time than you can rage, and you regain all expended uses when you finish a long rest.

Weakness Infliction

Starting at 14th level, you can render offenders of nature weak to your attacks. When you enter rage, you may immediately cast Elemental Bane, requiring no additional action or components. This feature can be used in conjunction with Bestial fury and Infused Strike, but can only be used 2 times. You regain all expended uses after a long rest.