Bonus Proficiency

When you choose this tradition at 3rd level, you gain proficiency with either the horn or the drum. Additionally, you become proficient with martial weapons and shields.  

Warband Warrior

You become an essential member of your warband and create a unique dynamic within it. You and up to five warband members within 60 feet of you, gain a +1 bonus to AC. You have to share a deep connection with a creature to count them as warband members. This means that this feature only involves other PCs in your party, and perhaps a couple of NPCs and animal companions outside your party (at the GM’s discretion).  

Song of Skogheimer

You learn the Song of the Skogheimer. By expending one use of your Bardic Inspiration and playing the Song of the Skogheimer with your drum or horn as an action, you create one of the following effects of your choice: The song makes your allies feel excited. Roll a d6. Each ally within 150 feet of you that can hear you gains temporary hit points equal to the result of the die for 1 minute. With your song, your allies lose themselves in the heat of battle. Roll a d6. Each ally within 60 feet of you that can hear you adds the result of the die to their damage rolls for the next 3 rounds and their attacks become magical for the duration.

Song of the Glorious Death

At 14th level, you learn the Song of the Glorious Death. By playing Song of the Glorious Death with your drum or horn as an action, you strip your allies of the fear of death. For 1 minute, each ally within 150 feet of you that can hear you has advantage on saving throws against being charmed and frightened.   Also, you and a number of other creatures of your choice equal to your Charisma modifier (minimum of 1) within 150 feet of you are affected by the haste spell. This effect lasts for 1 minute, and you have to concentrate on it as if you were concentrating on a spell.   Once you use this feature, you must finish a long rest to use it again.