Blood Drum Warrior

Pack Tactics. The warrior has advantage on an attack roll against a creature if at least one of the warrior's allies is within 5 feet of the creature and the ally isn't restrained, incapacitated, or unconscious

Drum Circle. Within earshot all Blood Drum warriors gain +15ft walking speed and +1 temporary HP for each warrior in combat.

Bloodthirsty Armor. When a Blood Drum warrior kills an enemy, they can mark a handprint of the victims' blood on their armor. Doing so regains the temporary HP given to them at the start of battle. 

Labyrinthine Recall. Blood Drum warrior can perfectly recall any path it has previously traveled. 

Spear of Returning. 2 Melee and 1 Ranged Weapon Attack:

One-handed Weapon Attack: +6 to hit, reach 10 ft., one target. Hit: 8.5 (1d8 + 4) piercing damage.

Two-handed Weapon Attack: +8 to hit, reach 10 ft., one target. Hit: 9.5 (1d10 + 4) piercing damage.

Ranged Weapon Attack: +8 to hit, reach 20ft/60ft., one target. Hit: 12.5 (1d12 + 6) piercing damage.

Blood Cleaver. 3 Melee attacks:

One-handed Weapon Attack: +8 to hit, reach 5 ft., one target. Hit: 7 (2d4 + 2) slashing damage.

Spear Recall: Spear of returning flies back to your hand

Drum Circle: Beats the armor to provide +15ft movement bonus to any Blood Drum warriors in earshot

Boots of Feather Falling: To take refuge quickly into the holes of the Underdark, each warrior is equipped with a pair of these boots to provide safety when jumping in carelessly, or ease of travel when swinging from the heights of the Blood Drum Labyrinth.

Blood Blessing (Once per long rest): After receiving damage, can use reaction to gain half of damage taken in temp HP.