Yakfolk Hand of Horns

Crown of Purpose. Whenever the yakfolk fails an attack roll, ability check or saving throw they can choose to take 5 points of psychic damage. If they do then they instead succeed the saving throw and now deal an extra 1d4 points of psychic damage with their next weapon attack. 

Sundering Defeat. When the yakfolk is reduced to 0 hit points its bonus splits in half and denigrates leaving nothing behind. Each creature not allied to the yakfolk within 60ft of it must make a DC 15 Strength saving throw or be pulled 30ft towards the yakfolk's square and take 40 (9d8) force damage. Half damage and have the amount of space moved on a successful saving throw.

Magic Resistance. The yakfolk has advantage on saving throws against spells and other magical effects.

Magic Weapons. The yakfolk's weapon attacks are magical.

Multi attack. The yakfolk makes two attack with either its greatsword or longbow. 

Greatsword. Melee Weapon Attack: +9 to hit, reach 5 ft., 1 target. Hit: 20 (4d6 + 6) slashing damage. 

Longbow. RangedWeapon Attack: +3 to hit, range 150/600 ft., 1 target. Hit: 9 (2d8) piercing damage.

Channel Ideals (4/day). The yakfolk as a bonus action can add an additional 11 (2d10) force damage to the damage of a weapon attack, this can be multiplied with a critical hit and can be chosen after seeing the roll's result.