Homebrew
Powerful Legs. The vyrnette's jump height and distance is doubled. When jumping, the vyrnette's movement can excede its walking speed.
Bite. Melee Weapon Attack: +5 to hit, reach 5 ft., one target. Hit: 1d6 + 3 piercing damage. Tongue Grab. Melee Weapon Attack: +5 to hit, reach 10 ft., one target. Hit: 1d4 +3 bludgeoning damage. If the creature is Tiny, it is grappled and pulled 5 ft toward the Vyrnette (escape DC 11). While a creature is grappled, the vyrnette can only make bite attacks against the grappled creature.