Allosaurus

If the allosaurus moves at least 30 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 allosaurus can make one bite attack against it as a bonus action.

Melee Weapon Attack +6 to hit, reach 5 ft., one target. 15 (🎲2d10 + 4) 🏹 Piercing damage.

Melee Weapon Attack +6 to hit, reach 5 ft., one target. 8 (🎲1d8 + 4) 🗡️ Slashing damage.