D&D 5th Edition Data Explorer

Multiattack
The dragon can use its Frightful Presence. It then makes three attacks: one with its bite and two with its claws.
options:
choose:
1
from:
Frightful Presence
count:
1
type:
ability
Bite
count:
1
type:
melee
Claw
count:
2
type:
melee
Bite
Melee Weapon Attack: +16 to hit, reach 15 ft., one target. Hit: 20 (2d10 + 9) piercing damage.
attack bonus:
16
damage:
- 2d10+9
  Piercing
Claw
Melee Weapon Attack: +16 to hit, reach 10 ft., one target. Hit: 16 (2d6 + 9) slashing damage.
attack bonus:
16
damage:
- 2d6+9
  Slashing
Tail
Melee Weapon Attack: +16 to hit, reach 20 ft., one target. Hit: 18 (2d8 + 9) bludgeoning damage.
attack bonus:
16
damage:
- 2d8+9
  Bludgeoning
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 20 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.
dc:
dc type:
WIS
dc value:
20
success type:
none
Breath Weapons
The dragon uses one of the following breath weapons.
Lightning Breath. The dragon exhales lightning in a 120-foot line that is 10 feet wide. Each creature in that line must make a DC 23 Dexterity saving throw, taking 88 (16d10) lightning damage on a failed save, or half as much damage on a successful one.
Repulsion Breath. The dragon exhales repulsion energy in a 30-foot cone. Each creature in that area must succeed on a DC 23 Strength saving throw. On a failed save, the creature is pushed 60 feet away from the dragon.
attack options:
choose:
1
from:
Lightning Breath
damage:
16d10
Lightning
dc:
dc type:
DEX
dc value:
23
success type:
half
Repulsion Breath
dc:
dc type:
STR
dc value:
23
success type:
none
type:
attack
usage:
dice:
1d6
min value:
5
type:
recharge on roll
Change Shape
The dragon magically polymorphs into a humanoid or beast that has a challenge rating no higher than its own, or back into its true form. It reverts to its true form if it dies. Any equipment it is wearing or carrying is absorbed or borne by the new form (the dragon's choice).
In a new form, the dragon retains its alignment, hit points, Hit Dice, ability to speak, proficiencies, Legendary Resistance, lair actions, and Intelligence, Wisdom, and Charisma scores, as well as this action. Its statistics and capabilities are otherwise replaced by those of the new form, except any class features or legendary actions of that form.