Snaketongue Wyvern
Large natural beast (mount, reptile)
Level 10 Skirmisher XP 500

Initiative +10        Senses Perception +12; low-light vision
Venom Enhancement aura 2; each enemy within the aura that has ongoing poison damage takes a –2 penalty to all defenses and saving throws.
HP 106; Bloodied 53
AC 24; Fortitude 24, Reflex 20, Will 19
Speed 4, fly 8 (hover)

(⚔) Bite (standard, at-will)

Reach 2; +15 vs AC; 1d8+7 damage.

(⚔) Claws (standard, at-will)

+15 vs AC; 1d6+7 damage, and the target is knocked prone.

⚔ Sting (standard, at-will) ✦ Poison

Reach 2; +15 vs AC; 1d6+4 and the wyvern makes a secondary attack against the same target. Secondary Attack: +13 vs. Fortitude; ongoing 10 poison damage (save ends).

⚔ Flyby Attack (standard, at-will)

The wyvern flies 8 squares and makes one melee basic attack at any point during that movement. The wyvern doesn't provoke opportunity attacks when moving away from the target

Aerial Agility (while mounted by a rider of 10th level or higher; at-will) ✦ Mount

While flying, the wyvern grants its rider a +2 bonus to all defenses.

Slither Away (while bloodied)

The wyvern gains a +2 bonus to speed and a +2 bonus to all defenses.

Alignment Unaligned        Languages -
Skills Stealth +10
Str 24 (+12)      Dex 17 (+8)      Wis 15 (+7)
Con 18 (+9)      Int 2 (+1)      Cha 8 (+4)

Published in Dungeon Master's Guide 2, page(s) 119.