Path of the Warsong

Many barbarians enter battle screaming and cursing at the top of their lungs. Path of the warsong barbarians turn this into a form of art. Barbarians who walk the path of the warsong use the power in their voices to bolster their allies and taunt their enemies while swinging an enormous weapon with abandon.

Iron Lungs

 At third level you gain proficiency in the performance skill, if you already have proficiency in this skill you can choose another skill off the barbarian class list. You can also use your constitution modifier for all performance and intimidation checks in place of your charisma modifier.  This feature replaces primal knowledge optional feature.

Song of Bloodlust

beginning at 3rd level when you rage you can inspire your allies to deal greater damage. When you enter rage you choose up to three creatures that can hear your performance to gain a bloodlust die. These creatures roll an additional 1d6 damage on their next damage roll. This damage is the same type dealt by the attack. If the attack deals multiple types of damage the attacker decides the damage type. you then heal an amount of damage equal to the number rolled on the bloodlust dice. If this would put you over your maximum then the rest are added as temporary hit points. The damage die increases to 1d8 at 8th level, 1d10 at 13th level, and 1d12 at 18th level. A creature can only benefit from this song once per combat.  

Song of discord:

Beginning at 6th level you can use your song to harass and taunt your opponents. As a bonus action you choose up to three creatures that can hear you sing. These creatures must make a wisdom saving throw (DC=8 + proficiency bonus+ strength mod). If the creatures fail this save the suffer a 1d4 penalty to their attack rolls and saving throws for one minute or until they deal damage to you. you can use this feature a number of times per day equal to your proficiency bonus. 

Song of Rest

Beginning at 6th level, you can use soothing music or oration to help revitalize your wounded allies during a short rest. If you or any friendly creatures who can hear your performance regain hit points at the end of the short rest by spending one or more Hit Dice, each of those creatures regains an extra 1d6 hit points.The extra Hit Points increase when you reach certain levels in this class: to 1d8 at 10th level, to 1d10 at 14th level, and to 1d12 at 18th level. This feature replaces the optional barbarian class feature Instinctive Pounce.

Rallying song

 beginning at 10th level as an action you can sing a song to rally your allies. you choose a number of creatures equal to your proficiency bonus. These creatures can roll a saving throw to end a continuous magical effect currently affecting them. The type and difficulty of the saving throw is equal to the original effect. This feature only works if the target can hear the caster. This ability does not work on magical effects that do not require saving throws, and if the target is currently under multiple effects they choose which one this ability applies to. Once this feature has been used you cannot use it again until you have completed a long rest. 

Ballad of Champions

Beginning at 14th level your songs bolster your allies against fear and protect them in battle. When you enter rage you plus a number of allies equal their proficiency bonus have advantage against saving throws to resist fear and charm effects. You also grant these creatures a number of temporary hit points equal to your level. These creatures must be able to hear your song to benefit from this effect.