Large dragon, unaligned

Armor Class: 13 (natural armor)

Hit Points: 110 (13d10 + 39) 13d10+39

Speed: 20 ft , fly: 80 ft

STR

19 +4

DEX

10 +0

CON

16 +3

INT

5 -3

WIS

12 +1

CHA

6 -2

Skills: Proficiency Bonus +3

Senses: Perception +4

Languages: --

Challenge Rating: 6 (2,300 XP)

Actions

Multiattack. The wyvern makes two attacks: one with its bite and one with its stinger. While flying, it can use its claws in place of one other attack.   Bite. Melee Weapon Attack: +7 to hit, reach 10 ft., one creature. Hit: 11 (2d6 + 4) 2d6+4 piercing damage.   Claws. Melee Weapon Attack: +7 to hit, reach 5 ft., one target. Hit: 13 (2d8 + 4) 2d8+4 slashing damage.   Stinger. Melee Weapon Attack: +7 to hit, reach 10 ft., one creature. Hit: 11 (2d6 + 4) 2d6+4 piercing damage. The target must make a DC 15 Constitution saving throw, taking 24 (7d6) 7d6 poison damage on a failed save, or half as much damage on a successful one.