Cupcake

Keen Hearing and Smell. Cupcake has advantage on Wisdom (Perception) checks that rely on hearing or smell.

Pack Tactics. Cupcake has advantage on an attack roll against a creature that is engaging her bonded companion.

Bite. Melee Weapon Attack: +5 to hit, reach 5 ft., one target. Hit: 10 (2d6 + 3) piercing damage. If the target is a creature, it must succeed on a DC 13 Strength saving throw or be knocked prone.

Claw. Melee Weapon Attack: +5 to hit, reach 5 ft., one target. Hit: 12 (2d8 +3) slashing damage. 

Pounce.  If Cupcake moves at least 20 feet straight toward a creature, she can leap up to 10 feet and attempt to grapple and restrain the target. Roll an Athletics Check (+5) contested by the target's Acrobatics or Athletics check (their choice). The target has disadvantage on the roll if it is size Medium or smaller.

Sworn Protector. If a creature within 5 ft. of Cupcake makes an attack against Cupcake's bonded companion, Cupcake can use her reaction to make a claw attack against the creature. This attack has advantage and is a critical hit if Cupcake's bonded was knocked unconscious by the attack.