Charge. If Wrath moves at least 10 feet straight toward a target and then hits it with a gore attack on the same turn, the target takes an extra 19 (2d8) piercing damage. If the target is a creature, it must succeed on a DC 16 Strength saving throw or be pushed up to 10 feet away and knocked prone.

Labyrinthine Recall. Wrath can perfectly recall any path he has traveled, and knows every path in his labyrinth innately. 

Upon Wrath's death all of blood, even that on the weapons of those who attacked him begins to boil causing 3d10 burning damage.

Greataxe. Melee Weapon Attack: +16 to hit, reach 15 ft., one target. Hit: 17 (2d12 + 4) slashing damage.

Gore. Melee Weapon Attack: +16 to hit, reach 155 ft., one target. Hit: 30 (1d8 + 4) piercing damage.

Bellow of Rage. Ranged Attack 80ft, Wrath bellows with all the rage of a storm causing each creature within range to make a DC 17 wisdom save. On a failed save the creatures take 16(2d6) psychic damage and are frightened, on a success only the damage applies. 

Per each 267 damage taken his attacks gain (5d_). 

If a critical hit is landed on him he can use the Bellow of Rage ability.

Wrath has 3 legendary actions a day 

Reckless. At the start of his turn, Wrath  can gain advantage on all melee weapon attack rolls he makes during that turn.

Enraged. Wrath can cause each creature it sees to go mad with rage and attack whatever creature is nearest to it.

Again. Wrath can send any creature to the beginning of his labyrinth again.