Wyvern
large dragon, unaligned
AC 14 (natural armor)
Initiative +0 (10)
HP 127 (15d10 + 45)
Speed 30 ft., Fly 80 ft.
ModSaveSTR19+4+4DEX10+0+0CON16+3+3
ModSaveINT5-3-3WIS12+1+1CHA6-2-2
Skills Perception +4
Senses Darkvision 120 ft. Passive Perception 14
CR 6 (XP 2,300; PB +3)
Actions
Bite. Melee Attack Roll: +7, reach 5 ft. Hit: 13 (2d8 + 4) Piercing damage.
Multiattack. The wyvern makes one Bite attack and one Sting attack.
Sting. Melee Attack Roll: +7, reach 10 ft. Hit: 11 (2d6 + 4) Piercing damage plus 24 (7d6) Poison damage, and the target has the Poisoned condition until the start of the wyvern's next turn.
Wyvern is from the System Reference Document 5.2.1 (“SRD 5.2.1”) by Wizards of the Coast LLC, used under the Creative Commons Attribution 4.0 International License. Full attribution is on the Licenses & Attribution page.