Deep dragons often hoard secrets, delighting in knowledge of far-off lands.
Many seek out new insights and tricks that they can use against other denizens of the Underdark, preferring social manipulation and crafty dealmaking to exerting themselves in combat.
Deep dragons look down on any creature that isn’t useful to them, though they are willing to bargain for knowledge they lack.
Huge Dragon, Typically Neutral Evil
Proficiency Bonus: +4
Armor Class: 17 (natural armor)
Hit Points: 147 (14d12 + 56)
Speed: 40 ft., burrow 30 ft., fly 80 ft., swim 40 ft.
STR – 20 (+5)
DEX – 14 (+2)
CON – 18 (+4)
INT – 16 (+3)
WIS – 16 (+3)
CHA – 18 (+4)
Saving Throws: Dex +6, Con +8, Wis +7, Cha +8
Skills: Perception +7, Persuasion +12, Stealth +10
Damage Resistances: poison, psychic
Condition Immunities: charmed, frightened, poisoned
Senses: blindsight 60 ft., darkvision 150 ft., passive Perception 17
Languages: Common, Draconic, Undercommon
Challenge: 11 (7,200 XP)
Legendary Resistance (3/Day): If the dragon fails a saving throw, it can choose to succeed instead.
Actions
Multiattack: The dragon makes one Bite attack and two Claw attacks.
Bite: Melee Weapon Attack: +9 to hit, reach 10 ft., one target. Hit: 16 (2d10 + 5) piercing damage plus 5 (1d10) poison damage.
Claw: Melee Weapon Attack: +9 to hit, reach 5 ft., one target. Hit: 8 (1d6 + 5) slashing damage.
Tail: Melee Weapon Attack: +9 to hit, reach 15 ft., one target. Hit: 9 (1d8 + 5) bludgeoning damage.
If the target is a creature, it must succeed on a DC 17 Strength saving throw or be knocked prone.
Change Shape: The dragon magically transforms into any creature that is Medium or Small, while retaining its game statistics (other than its size).
This transformation ends if the dragon is reduced to 0 hit points or uses its action to end it.
Nightmare Breath (Recharge 5–6). The dragon exhales a cloud of spores in a 60-foot cone.
Each creature in that area must make a DC 16 Wisdom saving throw. On a failed save, the creature takes 33 (6d10) psychic damage, and it is frightened of the dragon for 1 minute.
On a successful save, the creature takes half as much damage with no additional effects.
A frightened creature can repeat the saving throw at the end of each of its turns, ending the effect on itself on a success.
Legendary Actions
The dragon can take 3 legendary actions, choosing from the options below.
Only one legendary action 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.
Commanding Spores: The dragon releases spores around a creature within 30 feet of it that it can see.
The target must succeed on a DC 16 Wisdom saving throw or use its reaction to make a melee weapon attack against a random creature within reach.
If no creatures are within reach, or the target can’t take a reaction, it takes 5 (1d10) psychic damage.
Tail: The dragon makes one Tail attack.
Spore Salvo (Costs 2 Actions): The dragon releases poisonous spores around a creature within 30 feet of it that it can see.
The target must succeed on a DC 16 Constitution saving throw or take 17 (5d6) poison damage and become poisoned for 1 minute.
The poisoned creature can repeat the saving throw at the end of each of its turns, ending the effect on itself on a success.
Frequently Asked Question of Adult Deep Dragon
Adult Deep Dragon is an excellent monster, but most people have a few questions about it. I have listed the answers below;
1. What Book Is Adult Deep Dragon 5e?
You can be find this Adult Deep Dragon in sourcebook of “Fizban’s Tresury of Dragons” which complete detalis are describe in this book.
2. Can Adult Deep Dragon Make Tail Attacks?
As per description, adult deep dragon can make one tail attacks.
3. Can Adult Deep Dragon Use Change Shape?
The dragon magically transforms into any creature that is Medium or Small, while retaining its game statistics.
This transformation ends if the dragon is reduced to 0 hit points or uses its action to end it.
4. How Does Adult Deep Dragon Make Damages?
The adult deep dragon exhales a cloud of spores in a 60-foot cone. Each creature in that area must make a DC 16 Wisdom saving throw.
On a failed save, the creature takes 33 (6d10) psychic damage, and it is frightened of the dragon for 1 minute.
On a successful save, the creature takes half as much damage with no additional effects.
A frightened creature can repeat the saving throw at the end of each of its turns, ending the effect on itself on a success.
5. Can Adult Deep Dragon Use Commanding Spores?
The adult deep dragon releases spores around a creature within 30 feet of it that it can see.
The target must succeed on a DC 16 Wisdom saving throw or use its reaction to make a melee weapon attack against a random creature within reach.
If no creatures are within reach, or the target can’t take a reaction, it takes 5 (1d10) psychic damage.
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