Fuelled by Violence. Each round that Wrath is targeted by an attack, its attack modifier increases by +1, but each round that it is not targeted by an attack the damage modifier reduces by -1.

Pain Split. If Wrath takes more that 10 damage from an attack, it splits the damage and returns half of the damage, (rounded up) back to the attacker.

Multi-attack. Wrath make four melee attacks, two with its longsword and two with its flail.

Longsword. Melee Weapon Attack: +5 to hit, reach 5ft., 1 target. Hit: # (1d8 + 8) slashing damage. 

Flail. Melee Weapon Attack: +5 to hit, reach 5ft., 1 target. Hit: # (1d8 + 8) bludgeoning damage. 

Wrath can take 3 legendary actions, choosing from the options below. Only one legendary action option can be used at a time and only at the end of another creature's turn. Wrath regains spent legendary actions at the start of its turn.

Charge. Wrath moves up to its speed

Enrage (Costs 2 Actions). Wrath targets a creature that has attacked it, the target must succeed a DC 16 wisdom save or spend their next turn making an attack against the creature closest to them.