Jsk College of War

Bonus Proficiencies
At 3rd level, you gain proficiency with medium armour, shields, and any weapon that has the reach property. You also gain proficiency with horns. If you are already proficient with horns, you can choose another musical instrument to become proficient with.

War Banner
At 3rd level, you gain a war banner that you can use to raise the morale of your allies. You can also attach your war banner to a weapon with the reach property, as long as you are proficient with that weapon, turning it into a banner weapon. As an action, you can wave your banner with one hand until the start of your next turn, or you can plant it into the ground at an unoccupied location within 5 feet of you. While planted, your banner does not prevent movement through its space. When you wave or plant your banner, you can choose any number of your Inspiration Die and grant them to willing creatures within 30 feet of yourself. You cannot grant yourself an Inspiration Die using this feature. A creature must be able to see your banner or hear you to gain an Inspiration Die from this feature. While a creature has one of your Inspiration Die, and it is within 30 feet of your banner, it can use one of the following effects;
 * Banner of Endurance: When a creature takes damage from an attack, they can use their reaction to expend their Inspiration Die and reduce the damage from that attack by twice the amount rolled.
 * Banner of Glory: When a creature takes the Attack action, it can expend its Inspiration Die to make one weapon attack using its bonus action.
 * Banner of Resolve: When a creature makes a saving throw, they can use their reaction to expend their Inspiration Die, adding the result to their saving throw roll.

Battle March
At 6th level, you can use your banner to rouse your allies while you march to your next destination. While traveling for an hour or more, you and your allies have advantage on Constitution saving throws made against suffering exhaustion. Additionally, when you and creatures that you consider to be allies roll initiative, you can choose to blow your horn and make an audible noise out to 300 feet. When you do so, all allies within 60 feet of you can add your Charisma modifier (a minimum of 1) to their initiative. A creature must be able to hear your horn to gain the benefits of this feature.

Extra Attack
At 6th level, you can attack twice, instead of once, whenever you take the Attack action on your turn.

Declaration of War
At 10th level, you can use your action to blow your horn, making an audible noise out to 300 feet. When you do so, all allies of your choosing within 30 feet of you make their next attack with advantage, including you. A creature must be able to hear your horn to gain the benefits of this feature. If an ally effected by this feature deal damage to a creature that you consider to be an enemy during its next turn, you regain one expended Inspiration Die. You can only regain one expended Inspiration Die per ally by using this feature. Once you have used this feature, you cannot use it again until you have finished a long rest.