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

Confer Fire Resistance. The dragon can grant resistance to fire damage to anyone riding it.

bonesaddle. The dragon obeys whoever is siting in the saddle or whom last sat in the saddle if no one is currently, because it already has a saddle it dose not need one to be rode well flying.

boneladder. The dragon has bars up to the saddle that can be climbed, it takes 2 turns if you start at the front legs or 3 if the back legs, when climbing you are in its space and gain full cover if something attacking you is on the other side, if you are the last to sit in the saddle the climb can be completed in one turn if you have 10ft move left.

Multiattack. The dragon can use its Frightful Presence. It then makes three attacks: one with its bite and two with its claws.

Bite. Melee Weapon Attack: +14 to hit, reach 10 ft., one target. Hit: 19 (2d10 + 8) piercing damage plus 7 (2d6) fire damage.

Claw. Melee Weapon Attack: +14 to hit, reach 5 ft., one target. Hit: 15 (2d6 + 8) slashing damage.

Tail. Melee Weapon Attack: +14 to hit, reach 15 ft., one target. Hit: 17 (2d8 + 8) bludgeoning damage.

Frightful Presence. Each creature of the dragon’s choice that is within 120 feet of the dragon and aware of it must succeed on a DC 19 Wisdom saving throw or become frightened for 1 minute. A creature can repeat the saving throw at the end of each of its turns, 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 dragon’s Frightful Presence for the next 24 hours.

Fire Breath (Recharge 5–6). The dragon exhales fire in a 60-foot cone. Each creature in that area must make a DC 21 Dexterity saving throw, taking 63 (18d6) fire damage on a failed save, or half as much damage on a successful one.

throw off (1/climb). If someone tries to clime up the dragon, it can use this reaction to try to throw that person off, to do so it must succeed a contest of its acrobatics vs your athletics.

The dragon 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. The dragon regains spent legendary actions at the start of its turn.

Detect. The dragon makes a Wisdom (Perception) check.

Tail Attack. The dragon makes a tail attack.

Wing Attack (Costs 2 Actions). The dragon beats its wings. Each creature within 10 feet of the dragon must succeed on a DC 22 Dexterity saving throw or take 15 (2d6 + 8) bludgeoning damage and be knocked prone. The dragon can then fly up to half its flying speed.