Beast of the Week: Dragon Mount

As I mentioned last week, here are the dragon-beasts that your characters could ride around on in the Golden Axe video game series (the Chicken Leg one is under the dungeon chicken post).

Dragon Mount
Armor Class: 4 (16)
Hit Dice: 5+2*
Move: 90 (30)
Attacks: 1 breath or 1 bite
Damage: 3d6 or 1d8
No. Appearing: 1d6 (1d4)
Save As: Fighter 3
Morale: 8
Treasure Type: A
Alignment: Neutral
XP: 400

Dragon Mounts are two-legged, wingless beasts related to dragons that are often trained to serve as mounts to warriors from monstrous tribes or barbaric humans.  Each may use a breath weapon for 3d6 damage (which may be a 20' long, 10' across at the far end cone, a 30' long, 5' wide cone, or a 10' cube cloud) which deals 3d6 damage.  Anyone in the area of effect may Save vs. Breath for half damage.  The dragon mount's breath may be that of any standard dragon (cold, acid, chlorine, lightning, fire), regardless of the color of the dragon mount.  On their own, dragon mounts may bite (1-4 on d6) or breathe (5-6 on d6) in combat each round.  When directed by a rider, they attack as the rider desires, but no more than one breath every two rounds.