Albino Death Weasel

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

Pounce. If the weasel 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 weasel can make one bite attack against it as a bonus action.

Bite. Melee Weapon Attack: +5 to hit, reach 5 ft., one target. Hit: 8 (2d4 + 3) piercing damage.

Claw. Melee Weapon Attack: +5 to hit, reach 5 ft., one target. Hit: 5 (1d4 + 3) slashing damage. The target is also grappled (escape DC 13) if it is a Medium or smaller creature and the albino weasel isn't already grappling a creature. Until this grapple ends, the target is restrained and the albino death weasel can't claw another target.

Musk Spray (Recharge 5-6). The weasel unleashes a spray of foul musk in a 20-foot cone. Each creature in that area must succeed on a DC 12 Constitution saving throw or be poisoned for 1 minute. A creature can repeat the saving throw at the end of each of its turns, ending the effect on itself on a success.