Young Wyvern

Medium dragon, unaligned

Armor Class 13 (natural armor)
Hit Points 90 (12d8 + 36)
Speed 10ft., fly 40ft.

STR DEX CON INT WIS CHA
17 (+3) 10 (0) 16 (+3) 5 (-3) 10 (0) 6 (-2)

Skills Perception +2
Senses darkvision 60 ft., passive Perception 12
Languages
Challenge 4 (1,100 XP)

Actions

Bite. Melee Weapon Attack:+5 to hit, reach 10ft., one target. Hit 6 (1d6 + 3) piercing damage.

Claw. Melee Weapon Attack:+5 to hit, reach 5ft., one target. Hit 7 ( 1 d8 + 3) slashing damage.

Stinger. Melee Weapon Attack:+ 5 to hit, reach 10 ft., one creature. Hit: 1 0 (2d6 + 3) piercing damage. The target must make a DC 13 Constitution saving throw, taking 24 (7d6) poison damage on a failed save, or half as much damage on a successful one.