Steel Leaf Kavu

If the kavu moves at least 20 feet straight toward a creature and then hits it with a bite attack on the same turn, that target must succeed on a DC 15 Strength saving throw or be knocked Prone. If the target is Prone, the kavu can make one rend attack against it as a bonus action.

Melee Weapon Attack +7 to hit, reach 5 ft., one target. 14 (2d8 + 5) Piercing damage.

Melee Weapon Attack +7 to hit, reach 5 ft., one Prone creature. 23 (4d8 + 5) Slashing damage.