Sources
CR
Type
Size
Alignment
Movement

Wyvern

Large Dragon, Unaligned

Armor Class 13 (natural armor)
Hit Points 110 (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 Perception +4
Senses darkvision 60 ft., passive Perception 14
Languages
Challenge 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) piercing damage.

Claws. Melee Weapon Attack: +7 to hit, reach 5 ft., one target. Hit:13 (2d8 + 4) slashing damage.

Stinger. Melee Weapon Attack: +7 to hit, reach 10 ft., one creature. Hit:11 (2d6 + 4) piercing damage. The target must make a DC 15 Constitution saving throw, taking 24 (7d6) poison damage on a failed save, or half as much damage on a successful one.

Lore

Travelers in the wild sometimes look to the skies to see the dark-winged shape of a wyvern carrying its prey. These cousins to the great dragons hunt the same tangled forests and caverns as their kin. Their appearance sends ripples of alarm through the borderlands of civilization.