Unit 273v3

Vigilant. The unit can’t be surprised.

Can't hide. The unit knows were all creature's are within 60 feet of it.

Steeled mind. The unit's state of mind cannot be controlled or damaged by magical means. 

Bringing the hurt. The unit's expert fighting capabilties allows it to crit with a 19 on attack actions any saving throw the target had to make will automatically fail. Any crit made also doubles static damage.

Legendary resistance (5/day)

Multiattack. The unit can make a Sweep attack followed by 2 Shock-empowered rend attacks , make a Shocking pull attack followed by 2 Shock-empowered rend attacks or make 3 Shock-empowered rend attacks.

Shock-Empowered Rend. Melee Unarmed Attack: +17 +strength modifier to hit, reach 10 ft., one target. Hit: 4d10 + 30 lightning damage.

Sweep. Melee Unarmed Attack: +17 +strength modifier to hit, reach 10 ft., one target. Hit: 2D12 + 15 Lightning damage the target must succeed a DC 23 dex saving throw or fall phrone.

Shocking pull. Ranged Attack: +15 to hit advantage on flying creatures reach 150 ft. one target Hit: 2D12 + 25 lighting damage target must succeed on a DC 20 strength or dex saving throw (DC 27 for flying targets) or their movement speed becomes 0 until the end of their next turn flying targets falls phrone to the ground taking 1D10 damage for every 5 feet. 

Overload (3/Day). The magical mechanisms inside the unit get overloaded everyone within 30 feet needs to succeed on a 25 dex saving throw or get stunned for 1D4-1 turns. All units within 30 feet take 10D10 lightning damage. 

Deflect Attack. The unit can try to deflect a incomming attack. it has to save against the attack roll by rolling 1D20+ 15 if succesfull the attack misses.

Whenever the unit hits with its Deflect Attack, the attacker takes lightning damage damage equal to 30 + 2D10 + the unit's strength modifier.

3 legendary actions.

Counter stance. The unit gets ready to be attacked its reaction's increase by 1.

Might of the unit. The unit can increase its AC and strength by powering up Warning: multiple uses can have a negative effect on the unit's mental state. Everytime the unit uses might of the unit its AC and strength increases by 2 and the unit's base lightning damage increases by 1D10.

Beat down 2 actions. The unit attacks 1 target. they must succeed on a DC 25 strength saving throw or take 2D10 + strength modifire + 10 lightning damage and they lose 1 attack action for that turn.

The unit can only use it's mythic action once.

Requirments. Might of the unit has to be activated atleast 3 times, the unit needs to have lost atleast 40% of its total hp.

The unit becomes Beserked and will only care about killing it's target if there are multiple targets it will target the unit's main cause of rage.

the unit's lightning damage and reactions get doubled, the unit can make a extra rend attack on their turn and beat down's cost is reduced to only 1 legendary action.

After the 6th turn the unit self destructs destorying a area of 600 feet. any creature inside the blast will take 60D20 Thunder and 200 lightning damage. a creature that dies within the blast will be reduced to dust.