Bumble Lion

Keen Smell. The bumble lion has advantage on Wisdom (Perception) checks that rely on smell.

Prideful Swarm Tactics. The bumble lion has advantage on an attack roll against a creature if at least one of the bumble lion’s allies is within 5 feet of the creature and the ally isn’t incapacitated. Additionally, it can command all allies within 100 feet to swarm the target, unless the allies make a DC 15 WIS saving throw. 

Pounce. If the bumble lion moves at least 20 feet straight toward a creature and then hits it with a claw attack on the same turn, that target must succeed on a DC 13 Strength saving throw or be knocked prone. If the target is prone, the bumble lion can make one bite attack against it as a bonus action.

Running Leap. With a 10-foot running start, the bumble lion can long jump up to 25 feet.

Flight. This hellish monster can fly at a speed of 30 feet. 

Bite. Melee Weapon Attack: +5 to hit, reach 5 ft., one target. Hit: 7 (1d8 + 3) piercing damage.

Claw. Melee Weapon Attack: +5 to hit, reach 5 ft., one target. Hit: 6 (1d6 + 3) slashing damage

As a reaction, the bumble lion may sting a creature that makes an attack against it. 

Sting. One-time Melee Weapon Attack: +5 to hit, reach 5 ft., one target. Hit: 7 (1d8 + 3) piercing damage, plus 8 (1d8 + 4) poison damage, or half as much poison damage on a successful DC 15 CON save. The bumble lion is reduced to 0 HP if this attack hits.