Basic Airlacing: The bison can initiate basic airlacing effects as a 5th-level lacer. Dive: If the bison is flying and dives at least 30 feet straight toward a target and then hits it with a slam attack, the attack deals an extra 28 5d10 bludgeoning damage to the target. If the target is a creature, it must succeed on a DC 15 Strength saving throw or be pushed up to 10 feet away and knocked prone. Sure-Footed: The bison has advantage on Strength and Dexterity saving throws made against effects that would knock it prone.
Multiattack The bison makes two attacks: one slam attack and one gore attack. Slam Melee Weapon Attack: 1d20+8 to hit, reach 10 ft., one target. Hit: 25 3d12+5 bludgeoning damage. Gore. Melee Weapon Attack: 1d20+8 to hit, reach 10 ft., one target. Hit: 27 4d10+5 piercing damage. Air Blast (Recharge 5-6). The bison lifts it tail and then slams it down, blasting air in a 30-foot cone. Each creature in the area must make a DC 15 Strength saving throw. A creature takes 28 5d10 bludgeoning damage on a failed save and is pushed 30 feet away and knocked prone. On a successful save, a creature takes half as much damage and is not pushed or knocked prone.
The Sky Bison is a huge flying creature with six legs. Despite its enormous size and strength, the bison is able to float in the air effortlessly. The bison is a fairly intelligent creature, and is able to be trained as a creature capable of carrying people over long distances very quickly.