beast of the land (wolf) with dragon armor

Charge. If the beast moves at least 20 feet straight toward a target and then hits it with a maul attack on the same turn, the target takes an extra 1d6 slashing damage. If the target is a creature, it must succeed on a Strength saving throw against your spell save DC or be knocked prone.

Primal Bond. You can add your proficiency bonus to any ability check or saving throw that the beast makes.

Spiked armor. Deal an additional 1d4 points of piercing damage if beast moves at least 20 feet straight towards a target and hits with it maul attack. 

Spiked armor deal 1d4 piercing damage if grappled to grappling creature 

Maul. Melee Weapon Attack: +6 to hit, reach 5 ft., one target. Hit: 7 (1d8+5) slashing damage.