Legendary Resistance (3/Day). If the tarrasque fails a saving throw, it can choose to succeed instead.

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

Siege Monster. The Yaksha King deals double damage to objects and structures.

Multiattack. The Yaksha King can use its Frightful Presence. It then makes three attacks: one with its arm blade, two with its claws, one with its horns or petals

Arm Blade. Melee Weapon Attack: +19 to hit, reach 10 ft., one target. Hit: 36 (4d12 + 10) slashing damage.

Claw. Melee Weapon Attack: +19 to hit, reach 15ft., one target. Hit: 28 (4d8 + 10) slashing damage.

Horns. Melee Weapon Attack: +19 to hit, reach 10ft., one target. Hit: 32 (4d10 + 10) piercing damage.

slash petals. Melee Weapon Attack: +19 to hit, reach 20ft., one target. Hit: 24 (4d6 + 10) slashing damage. make a dex save of 24 or else your speed is halved

Frightful Presence. Each creature of the yaksha kings choice within 120 feet of it and aware of it must succeed on a DC 24 Constitution saving throw or become frightened for 1 minute. A creature can repeat the saving throw at the end of each of its turns, with disadvantage if the yaksha king is within line of sight, ending the effect on itself on a success. If a creature’s saving throw is successful or the effect ends for it, the creature is immune to the yaksha king Frightful Presence for the next 24 hours.

slash petals. Melee Weapon Attack: +19 to hit, reach 20ft., one target. Hit: 24 (4d6 + 10) slashing damage. make a dex save of 24 or else your speed is halved

the yaksha king has 1 reaction

Slash Counter. Melee Weapon Attack: +19 to hit, reach 10ft., one target. Hit: 32 (4d10 + 10) slashing damage. the user crouches down before slashing the opponents abdomen

Kings Counter. Melee Weapon Attack: +19 to hit, reach 10ft., one target. Hit: 32 (4d10 + 10) slashing damage. the user strikes a stance absorbing the incoming attack focusing the damage into its slash dealing a slash fueled by the opponents own attack. 

The Yaksha King can take 4 legendary actions.

Giant Arm Blade. Melee Weapon Attack: +19 to hit, reach 30ft cone., multi target. Hit: 32 (6d10 + 10) slashing damage.

Barrage Beat Down. Melee Weapon Attack: +19 to hit, reach 10ft., one target. Hit: 32 (4d10 + 10) slashing damage. the opponent must make a strength save dc24 or be grabbed and thrown into the nearest object then beat down by the move

Horns. upon use of this the feed is coated in the yaksha kings slashing petal when ever the opponent enters or moves inside the 25 ft circle they take (4d10 + 10) for every to feet the move.